The Calendar hole will go live in approximately 4 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 321st GrayJoKing 🇦🇺 741 107 20ms 28 Aug 2024 322nd emgordon154 740 108 12ms 11 Aug 2024 323rd Shanethegamer 🇺🇸 740 147 398ms 25 Sep 2025 324th neel11235813 738 108 441ms 13 Apr 2024 325th GolfingSuccess 🇬🇷 737 115 2ms 15 Apr 2024 325th Mandrzejy 🇵🇱 737 115 2ms 27 Apr 2024 327th dokutan 737 135 364ms 18 Nov 2025 328th BREMAUCY 🇫🇷 736 93 51ms 15 Apr 2024 329th m-tkach 🇺🇦 733 202 487ms 15 Jan 2025 330th Shanethegamer 🇺🇸 731 155 127ms 16 Apr 2024 331st Herbert00709 🇵🇱 730 116 2ms 28 Apr 2024 332nd duckyluuk 🇳🇱 727 110 43ms 17 Apr 2024 333rd inventshah 727 147 420ms 29 Mar 2025 334th mousetail 🇳🇱 726 156 133ms 16 Aug 2024 335th GolfingSuccess 🇬🇷 724 110 374ms 15 Apr 2024 336th stefangimmillaro 724 131 44ms 26 Apr 2025 337th GolfingSuccess 🇬🇷 724 234 494ms 19 Jan 2025 338th anter69 🇭🇺 723 115 97ms 15 Apr 2024 338th fourth-bit 723 115 701ms 27 Sep 2024 338th souta-1326 723 115 12ms 26 May 2025 341st BlankSpruce 722 148 59ms 22 Aug 2024 342nd Shanethegamer 🇺🇸 721 138 380ms 16 Apr 2024 343rd Natanaelel 🇸🇪 720 144 126ms 20 Apr 2024 344th msbranicky 720 154 157ms 14 Apr 2024 345th AlephSquirrel 718 111 435ms 13 Apr 2024 346th msbranicky 718 181 263ms 14 Apr 2024 347th Shanethegamer 🇺🇸 717 116 16ms 13 Apr 2024 348th snoozingnewt 🇨🇦 715 155 110ms 20 Nov 2025 349th helbling 🇨🇭 714 112 22ms 18 Apr 2024 350th msbranicky 712 159 125ms 14 Apr 2024 351st lifthrasiir 🇰🇷 711 112 1,095ms 2 Dec 2024 352nd lifthrasiir 🇰🇷 711 117 722ms 10 Nov 2024 352nd snydej 711 117 17ms 28 Nov 2024 354th MeWhenI 🇻🇦 708 113 11ms 3 Aug 2024 355th msbranicky 707 164 128ms 16 Apr 2024 356th CornerMercury 🇬🇧 705 118 12ms 5 days ago 357th KrausRaus 🇺🇸 701 114 13ms 29 Apr 2024 358th MeWhenI 🇻🇦 700 111 1,072ms 21 Apr 2024 359th sultan 699 119 47ms 15 Apr 2024 359th ndren 699 119 11ms 28 Nov 2024 361st dcgjb 697 117 382ms 29 Apr 2024 362nd albanian-laundromat 697 243 437ms 18 Oct 2025 363rd retrohun 696 659 1ms 23 Aug 2025 364th emgordon154 694 126 135ms 15 Nov 2024 365th Shanethegamer 🇺🇸 694 230 44ms 13 Apr 2024 366th m-tkach 🇺🇦 693 120 744ms 14 Apr 2024 366th ZakkkkAttackkkk 🇵🇭 693 120 653ms 9 Sep 2024 366th InigoK 🇺🇸 693 120 12ms 10 Sep 2025 369th 4hg 🇺🇸 691 55 38ms 3 Nov 2024 370th coreynash 689 116 12ms 23 May 2024 371st Waffle3z 689 147 7ms 28 Apr 2024 372nd davitf 688 121 17ms 30 Apr 2024 372nd neihousaigaai 688 121 11ms 2 Oct 2024 372nd albanian-laundromat 688 121 12ms 6 Oct 2025 372nd snoozingnewt 🇨🇦 688 121 12ms 20 Nov 2025 376th Shanethegamer 🇺🇸 687 116 484ms 13 Apr 2024 377th inventshah 687 668 2ms 19 Apr 2024 378th MeWhenI 🇻🇦 683 671 2ms 22 Apr 2024 379th CaedenHarper 🇨🇦 681 117 535ms 29 Jul 2025 380th MeWhenI 🇻🇦 681 157 63ms 21 Apr 2024 381st Shanethegamer 🇺🇸 679 107 415ms 13 Apr 2024 382nd MeWhenI 🇻🇦 679 125 792ms 15 Sep 2025 383rd olleicua 🇺🇸 678 101 108ms 23 Apr 2024 384th voytxt 🇨🇿 678 118 10ms 25 Jul 2024 385th MeWhenI 🇻🇦 678 125 4ms 21 Apr 2024 386th MeWhenI 🇻🇦 678 167 126ms 21 Apr 2024 387th Bulmenisaurus 676 123 15ms 1 Nov 2024 387th CaedenHarper 🇨🇦 676 123 15ms 15 Aug 2025 387th HETHAT 🇩🇿 676 123 16ms 24 Sep 2025 390th anter69 🇭🇺 675 115 970ms 13 Mar 2025 391st MeWhenI 🇻🇦 675 150 3ms 22 Apr 2024 392nd albanian-laundromat 675 157 688ms 12 Sep 2025 393rd MeWhenI 🇻🇦 672 132 115ms 21 Apr 2024 394th Lv0Sys 🇵🇱 671 124 12ms 16 days ago 395th MeWhenI 🇻🇦 671 153 41ms 26 Jun 2024 396th Shanethegamer 🇺🇸 670 116 70ms 16 Apr 2024 397th m-tkach 🇺🇦 670 119 426ms 14 Apr 2024 398th msbranicky 666 125 11ms 13 Apr 2024 398th FlorianCassayre 🇫🇷 666 125 15ms 5 May 2024 398th guilhem-roy 🇫🇷 666 125 12ms 29 May 2025 First Prev 321–400 of 1,434 Next Last