The Calendar hole will go live in approximately 6 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 641st resoNathan 365 181 39ms 25 Apr 2024 642nd adamnielson42 🇺🇸 361 183 19ms 23 Apr 2024 643rd SURAJMITTAL 359 184 31ms 20 Dec 2024 644th yasna-nsh 357 185 25ms 7 Oct 2025 645th ei14 355 186 51ms 8 May 2024 646th Stockoh 🇫🇷 353 187 12ms 26 Apr 2024 647th msbranicky 352 300 1,135ms 14 Jan 2025 648th gnuvince 351 112 24ms 29 Jun 2025 649th XioR112 🇵🇱 350 189 32ms 3 Jun 2024 650th Alex-Huggett 🇬🇧 348 190 27ms 14 Apr 2024 651st 77Tigers 346 191 13ms 19 Apr 2024 651st Troon 346 191 23ms 6 Dec 2024 653rd JPRuskin 🇬🇧 346 209 649ms 25 Apr 2024 654th ItsEthanXYZ 344 192 33ms 16 Nov 2024 654th croc54 344 192 19ms 30 Dec 2024 654th kadamkaustubh 344 192 20ms 3 Oct 2025 657th kevinnaviapaiva 344 321 181ms 6 Mar 2025 658th Shanethegamer 🇺🇸 343 862 1ms 13 Apr 2024 658th HumanoidCPU 343 862 1ms 13 Apr 2024 658th BREMAUCY 🇫🇷 343 862 1ms 16 Apr 2024 658th bac0id 343 862 1ms 26 Jun 2024 658th CaedenHarper 🇨🇦 343 862 1ms 22 Jan 2025 663rd codewrite 🇬🇧 342 193 15ms 11 Jun 2025 664th Yewzir 🇧🇪 342 863 1ms 13 Apr 2024 664th KatieLG-Transpiler 🇬🇧 342 863 1ms 16 Aug 2024 664th Mabeloid 🇳🇴 342 863 1ms 17 Sep 2024 667th madeforlosers 336 237 10ms 5 Dec 2024 668th NerdyMcNerd42 330 200 40ms 20 Feb 2025 669th wobblybits 327 202 14ms 24 Aug 2025 670th dokutan 326 256 64ms 13 days ago 671st adoxography 325 203 19ms 27 Apr 2024 672nd Flekay 🇩🇪 322 205 18ms 10 Jul 2025 672nd Andrey2001 322 205 26ms 21 days ago 674th Alex-Huggett 🇬🇧 322 308 405ms 14 Apr 2024 675th aalec 321 206 15ms 23 Apr 2024 676th aksyristos 321 263 1ms 5 Nov 2024 677th msbranicky 318 180 188ms 16 Apr 2024 678th Giantnoodlemonster 315 268 2ms 6 Oct 2024 679th kevinnaviapaiva 308 322 346ms 28 Feb 2025 680th Languag3 307 215 12ms 10 Oct 2024 681st dokutan 307 467 98ms 13 days ago 682nd dokutan 304 296 789ms 15 days ago 683rd dokutan 303 558 391ms 13 days ago 684th dokutan 301 628 111ms 3 Jul 2025 685th kevinnaviapaiva 300 355 1,065ms 6 Mar 2025 686th Jonatan6 🇩🇰 296 285 2ms 17 Apr 2024 687th rollsroyce0 295 224 653ms 11 Sep 2024 688th aksyristos 294 225 16ms 5 Nov 2024 689th kevinnaviapaiva 294 293 7ms 6 Mar 2025 690th bac0id 293 644 80ms 26 Jun 2024 690th CaedenHarper 🇨🇦 293 644 80ms 22 Jan 2025 692nd FortuiteMan 🇫🇷 291 227 10ms 16 Oct 2024 693rd KatieLG 🇬🇧 290 509 733ms 17 Apr 2024 694th HumanoidCPU 290 651 79ms 13 Apr 2024 695th sciencejiho 289 229 18ms 26 Apr 2024 695th julian-hoelz 289 229 15ms 22 Sep 2024 697th dokutan 287 893 10ms 8 Oct 2024 698th mdnestor 286 231 53ms 2 Jul 2024 698th nstearns96 🇬🇧 286 231 2,166ms 21 Jan 2025 700th MeWhenI 🇻🇦 283 905 10ms 13 Apr 2024 700th BREMAUCY 🇫🇷 283 905 10ms 15 Apr 2024 700th Steffan153 🇫🇮 283 905 10ms 2 Aug 2024 700th KatieLG 🇬🇧 283 905 10ms 26 Sep 2024 700th CaedenHarper 🇨🇦 283 905 10ms 24 Jan 2025 705th HumanoidCPU 278 463 2ms 20 Nov 2025 706th sidok 277 245 600ms 26 Apr 2024 707th HumanoidCPU 277 924 10ms 21 days ago 708th Mabeloid 🇳🇴 276 929 10ms 17 Sep 2024 709th yzhs 🇩🇪 271 244 24ms 17 Jan 2025 710th bac0id 264 302 15ms 26 Jun 2024 711th KatieLG 🇬🇧 263 1,124 1ms 13 Apr 2024 712th Andrey2001 261 243 704ms 26 Nov 2025 713th dokutan 260 306 11ms 28 Mar 2025 714th kevinnaviapaiva 259 308 9ms 6 Mar 2025 715th kevinnaviapaiva 259 419 373ms 6 Mar 2025 716th cthierfelder 🇲🇨 258 256 51ms 8 Sep 2025 717th vhoulbreque 🇫🇷 257 257 37ms 11 Feb 2025 718th ComputerKWasTaken 🇺🇸 256 258 10ms 1 Jul 2024 719th dokutan 253 386 9ms 4 Apr 2025 720th hacker112 🇸🇪 243 328 9ms 22 Jun 2024 First Prev 641–720 of 1,419 Next Last