The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Factorial Factorisation in all languages in chars. 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 Chars Time Submitted 321st msbranicky 710 159 125ms 14 Apr 2024 322nd thisishowmymindworks 🇳🇴 705 113 21ms 27 Jun 2024 322nd MeWhenI 🇻🇦 705 113 11ms 3 Aug 2024 324th msbranicky 705 164 128ms 16 Apr 2024 325th ovs-code 🇩🇪 703 94 74ms 13 Apr 2024 326th DialFrost 🇸🇬 703 103 291ms 11 Jun 2024 327th Natanaelel 🇸🇪 699 82 156ms 22 Apr 2024 328th KrausRaus 🇺🇸 699 114 13ms 29 Apr 2024 329th Shanethegamer 🇺🇸 696 85 54ms 13 Apr 2024 329th Just4FunCoder 696 85 41ms 18 Jun 2025 331st MeWhenI 🇻🇦 696 111 1,072ms 21 Apr 2024 332nd Shanethegamer 🇺🇸 696 116 70ms 16 Apr 2024 333rd albanian-laundromat 695 243 534ms 18 Oct 2025 334th GrayJoKing 🇦🇺 694 97 149ms 15 Aug 2024 335th Steffan153 🇫🇮 693 141 9ms 16 Apr 2024 336th Shanethegamer 🇺🇸 690 230 44ms 13 Apr 2024 337th coreynash 687 116 12ms 23 May 2024 338th Waffle3z 687 147 7ms 28 Apr 2024 339th ovs-code 🇩🇪 686 51 250ms 14 Apr 2024 340th 4hg 🇺🇸 683 55 38ms 3 Nov 2024 341st MeWhenI 🇻🇦 683 106 530ms 17 Apr 2024 342nd olleicua 🇺🇸 680 87 57ms 23 Apr 2024 343rd MeWhenI 🇻🇦 678 157 98ms 21 Apr 2024 344th MeWhenI 🇻🇦 677 159 41ms 4 Sep 2024 345th MeWhenI 🇻🇦 676 167 126ms 21 Apr 2024 346th voytxt 🇨🇿 675 118 10ms 25 Jul 2024 347th MeWhenI 🇻🇦 675 125 4ms 21 Apr 2024 348th ovs-code 🇩🇪 674 94 366ms 16 Apr 2024 348th DialFrost 🇸🇬 674 94 447ms 2 Jun 2024 350th 5cw 🇺🇸 674 98 167ms 14 Apr 2024 350th SB-945 674 98 19ms 15 Apr 2024 350th davecame 674 98 30ms 24 Apr 2024 350th Babafaba 674 98 660ms 17 Nov 2025 354th MeWhenI 🇻🇦 673 150 2ms 22 Apr 2024 355th anter69 🇭🇺 672 115 970ms 13 Mar 2025 356th albanian-laundromat 672 157 688ms 12 Sep 2025 357th Shanethegamer 🇺🇸 670 127 138ms 26 days ago 358th MeWhenI 🇻🇦 669 132 115ms 21 Apr 2024 359th MeWhenI 🇻🇦 669 153 41ms 26 Jun 2024 360th ryyyn 🇺🇸 667 99 19ms 8 days ago 361st msbranicky 662 173 11ms 18 Apr 2024 362nd orthoplex 🇨🇽 661 100 11ms 13 Apr 2024 363rd retrohun 661 122 9ms 31 Dec 2024 364th MeWhenI 🇻🇦 660 53 1,250ms 21 Apr 2024 365th rucin93 🇵🇱 660 102 133ms 27 Dec 2024 366th DialFrost 🇸🇬 659 129 80ms 17 Nov 2024 367th 1231234md5 🇨🇳 658 121 10ms 4 May 2024 368th dokutan 654 101 68ms 20 Jun 2024 368th sunleonid 654 101 176ms 22 days ago 370th inventshah 654 129 2ms 29 Mar 2025 371st Shanethegamer 🇺🇸 653 152 1,312ms 13 Apr 2024 372nd emgordon154 652 173 142ms 18 Feb 2025 373rd duckyluuk 🇳🇱 651 162 102ms 12 Jun 2025 374th HumanoidCPU 650 167 501ms 8 Nov 2025 375th BlankSpruce 649 130 2ms 21 Aug 2024 376th Babafaba 647 98 957ms 17 Nov 2025 377th MeWhenI 🇻🇦 647 125 792ms 15 Sep 2025 378th emgordon154 647 139 4,276ms 13 Nov 2024 379th elgan65536 644 131 1ms 15 Apr 2024 380th neel11235813 643 92 46ms 14 Apr 2024 381st HumanoidCPU 642 103 46ms 9 May 2025 381st KasperKivimaeki 🇫🇮 642 103 77ms 17 days ago 381st bizy-coder 642 103 201ms 13 days ago 384th MeWhenI 🇻🇦 642 140 4,564ms 24 Oct 2024 385th Shanethegamer 🇺🇸 641 106 513ms 13 Apr 2024 386th mousetail 🇳🇱 641 123 19ms 17 Aug 2024 387th edsrzf 🇳🇿 639 153 19ms 14 Jul 2025 388th DialFrost 🇸🇬 638 148 44ms 25 Apr 2025 389th BREMAUCY 🇫🇷 637 93 45ms 15 Apr 2024 390th orthoplex 🇨🇽 636 55 1,149ms 14 Apr 2024 391st MeWhenI 🇻🇦 635 104 97ms 21 Apr 2024 391st SirBogman 🇺🇸 635 104 20ms 12 Aug 2025 393rd Shanethegamer 🇺🇸 635 139 123ms 15 Apr 2024 394th CatsAreFluffy 634 178 127ms 3 Nov 2024 395th MeWhenI 🇻🇦 633 137 2ms 26 Jun 2024 396th Shanethegamer 🇺🇸 631 155 16ms 16 Apr 2024 397th typeswitch-dev 🇵🇹 630 187 9ms 25 Jun 2024 398th dokutan 627 101 433ms 20 Jun 2024 399th BambooleanLogic 🇸🇪 627 127 10ms 15 May 2024 399th FlorianCassayre 🇫🇷 627 127 13ms 5 Jun 2024 First Prev 321–400 of 1,415 Next Last