The Calendar hole will go live in approximately 7 days. Why not try and solve it ahead of time?
Factorial Factorisation in all languages in bytes. Achievements Cheevos Holes Languages Medals Miscellaneous All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 241st KasperKivimaeki 🇫🇮 808 103 77ms 24 days ago 241st bizy-coder 808 103 201ms 19 days ago 243rd rucin93 🇵🇱 808 108 3ms 18 Nov 2025 244th DialFrost 🇸🇬 807 134 44ms 25 Jun 2025 245th MeWhenI 🇻🇦 806 161 265ms 22 Apr 2024 246th Shanethegamer 🇺🇸 805 85 46ms 13 Apr 2024 246th Just4FunCoder 805 85 41ms 18 Jun 2025 248th annaproxy 804 132 31ms 5 Sep 2025 249th Salutations45 803 101 4ms 30 Nov 2024 250th Shanethegamer 🇺🇸 803 138 457ms 15 Apr 2024 251st MeWhenI 🇻🇦 802 132 97ms 12 Jan 2025 252nd sean-niemann 🇺🇸 801 162 267ms 1 May 2024 253rd MeWhenI 🇻🇦 800 104 97ms 21 Apr 2024 253rd SirBogman 🇺🇸 800 104 20ms 12 Aug 2025 255th namelessiw 800 136 474ms 4 Oct 2025 256th nomennescio 799 113 676ms 9 Dec 2024 257th MeWhenI 🇻🇦 795 137 450ms 7 Nov 2025 258th Shanethegamer 🇺🇸 795 146 123ms 21 Jun 2024 259th sisyphus-ppcg 🇦🇺 793 92 85ms 15 Apr 2024 260th Natanaelel 🇸🇪 792 48 34ms 2 Mar 2025 261st dmrichwa 🇺🇸 792 101 13ms 3 Jul 2024 262nd duckyluuk 🇳🇱 792 105 718ms 16 Apr 2024 262nd IshanPanpaliya 792 105 68ms 22 days ago 264th Shanethegamer 🇺🇸 792 114 70ms 6 Dec 2024 265th sean-niemann 🇺🇸 792 140 105ms 18 Aug 2025 266th stefangimmillaro 792 143 144ms 17 Apr 2024 267th DialFrost 🇸🇬 791 103 233ms 11 Jun 2024 268th Shanethegamer 🇺🇸 791 128 59ms 16 Apr 2024 269th Mandrzejy 🇵🇱 791 135 59ms 27 Apr 2024 269th Herbert00709 🇵🇱 791 135 63ms 28 Apr 2024 271st GolfingSuccess 🇬🇷 790 134 37ms 12 Jan 2025 272nd kmathis22 789 138 598ms 17 days ago 273rd Natanaelel 🇸🇪 787 82 114ms 22 Apr 2024 274th CLOStrophobic 🇮🇹 784 138 47ms 13 Feb 2025 275th stefangimmillaro 783 135 108ms 14 Apr 2024 276th lifthrasiir 🇰🇷 779 51 2ms 28 Nov 2024 277th AlephSquirrel 779 141 86ms 13 Apr 2024 278th namelessiw 777 128 377ms 9 Apr 2025 279th Shanethegamer 🇺🇸 776 103 12ms 13 Apr 2024 280th duckyluuk 🇳🇱 774 103 1,026ms 16 Apr 2024 281st DialFrost 🇸🇬 774 134 143ms 6 Aug 2024 282nd jared-hughes 773 131 9ms 20 hours ago 283rd MeWhenI 🇻🇦 771 129 368ms 19 Jun 2025 284th edsrzf 🇳🇿 771 149 20ms 29 Jun 2025 285th neel11235813 770 108 66ms 13 Apr 2024 285th stefangimmillaro 770 108 69ms 17 Apr 2024 287th emgordon154 770 220 498ms 30 May 2025 288th MeWhenI 🇻🇦 769 106 476ms 17 Apr 2024 289th DialFrost 🇸🇬 767 114 145ms 28 Oct 2024 290th SirBogman 🇺🇸 766 104 399ms 12 Aug 2025 291st bricknellj 763 109 22ms 16 May 2024 292nd MichalMarsalek 🇨🇿 763 152 144ms 13 Apr 2024 293rd DialFrost 🇸🇬 762 144 21ms 10 Dec 2024 293rd edsrzf 🇳🇿 762 144 47ms 11 Feb 2025 295th Lv0Sys 🇵🇱 761 105 10ms 13 days ago 296th albanian-laundromat 761 135 45ms 51 mins ago 297th Shanethegamer 🇺🇸 761 139 111ms 16 Apr 2024 298th dokutan 761 143 446ms 18 Nov 2025 299th TheZwierzLF 🇵🇱 760 90 42ms 4 days ago 300th emgordon154 758 168 24ms 10 Dec 2024 301st jipsong 🇩🇪 756 110 16ms 12 Mar 2025 301st annaproxy 756 110 11ms 5 Sep 2025 303rd snoozingnewt 🇨🇦 756 144 432ms 18 days ago 304th Natanaelel 🇸🇪 754 106 10ms 15 Apr 2024 305th SirBogman 🇺🇸 753 126 43ms 3 Jun 2025 306th edsrzf 🇳🇿 751 144 58ms 22 Mar 2025 307th ethanlally 751 145 451ms 10 Nov 2025 308th GolfingSuccess 🇬🇷 750 111 12ms 15 Apr 2024 308th yujh-yujh 🇬🇸 750 111 16ms 12 days ago 310th elgan65536 750 151 137ms 15 Apr 2024 311th msbranicky 749 253 1,692ms 17 Sep 2025 312th CaedenHarper 🇨🇦 747 107 12ms 6 Sep 2025 313th edsrzf 🇳🇿 746 121 646ms 26 Jan 2025 314th SirBogman 🇺🇸 745 51 37ms 21 Apr 2024 315th CatsAreFluffy 744 91 131ms 4 Nov 2024 316th neel11235813 744 92 46ms 14 Apr 2024 317th AlephSquirrel 743 112 12ms 13 Apr 2024 318th elgan65536 742 175 267ms 15 Apr 2024 319th GrayJoKing 🇦🇺 741 107 20ms 28 Aug 2024 320th emgordon154 740 108 12ms 11 Aug 2024 First Prev 241–320 of 1,429 Next Last