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 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 81st xnor-gate 901 115 135ms 16 Jan 2025 82nd JayXon 🇺🇸 901 123 95ms 19 Apr 2024 82nd JayXon 🇺🇸 901 123 475ms 23 Apr 2024 84th JayXon 🇺🇸 901 144 265ms 18 Apr 2024 85th kg583 🇺🇸 900 122 46ms 21 Dec 2024 86th IanUtley 899 118 29ms 15 Apr 2024 87th JayXon 🇺🇸 899 129 149ms 19 Apr 2024 88th lukegustafson 🇺🇸 898 89 9ms 27 Jun 2025 89th JayXon 🇺🇸 898 111 1,289ms 30 Apr 2024 90th Shanethegamer 🇺🇸 898 128 11ms 16 Apr 2024 90th kg583 🇺🇸 898 128 11ms 47 hours ago 92nd JayXon 🇺🇸 897 81 482ms 29 Apr 2024 93rd JayXon 🇺🇸 897 119 20ms 28 Apr 2024 94th Steffan153 🇫🇮 897 142 9ms 16 Apr 2024 94th kg583 🇺🇸 897 142 9ms 23 days ago 96th SirBogman 🇺🇸 896 91 277ms 13 Aug 2025 97th GrayJoKing 🇦🇺 896 132 14ms 23 Jul 2025 98th xnor-gate 895 93 10ms 18 Jan 2025 99th pardouin 🇫🇷 895 101 4,489ms 13 May 2025 100th orthoplex 🇨🇽 894 55 1,149ms 14 Apr 2024 101st ovs-code 🇩🇪 894 116 159ms 12 days ago 102nd kg583 🇺🇸 894 121 45ms 14 Feb 2025 103rd pardouin 🇫🇷 893 87 968ms 15 Aug 2025 104th Shanethegamer 🇺🇸 893 129 138ms 4 Dec 2024 104th albanian-laundromat 893 129 84ms 14 Nov 2025 106th JayXon 🇺🇸 892 95 4ms 29 Apr 2024 106th saito-ta 🇯🇵 892 95 400ms 30 Apr 2024 108th UnderKoen 🇳🇱 892 166 234ms 20 Jan 2025 109th tailorspy 890 120 85ms 23 May 2024 110th albanian-laundromat 890 133 7ms 4 days ago 111th DialFrost 🇸🇬 889 82 81ms 5 Apr 2025 112th DialFrost 🇸🇬 886 82 872ms 29 May 2024 113th GrayJoKing 🇦🇺 886 146 19ms 17 Apr 2024 114th nwellnhof 🇩🇪 885 73 195ms 23 Apr 2024 115th pardouin 🇫🇷 885 90 394ms 23 Jun 2024 116th ovs-code 🇩🇪 885 94 74ms 13 Apr 2024 116th Steffan153 🇫🇮 885 94 77ms 19 Aug 2024 118th DialFrost 🇸🇬 885 123 563ms 24 Sep 2025 119th Frowny 884 43 36ms 15 Apr 2024 120th lynn 883 45 56ms 7 Jul 2024 121st sean-niemann 🇺🇸 883 121 59ms 2 May 2024 122nd Steffan153 🇫🇮 882 88 901ms 17 Apr 2024 123rd GrayJoKing 🇦🇺 882 115 35ms 18 Apr 2024 124th sean-niemann 🇺🇸 881 92 47ms 4 May 2024 125th m-tkach 🇺🇦 881 225 26ms 20 May 2024 126th sean-niemann 🇺🇸 880 126 407ms 30 Apr 2024 127th lyphyser 879 77 51ms 13 Apr 2024 128th DialFrost 🇸🇬 878 91 10ms 18 Aug 2025 129th sean-niemann 🇺🇸 878 124 450ms 24 Sep 2025 130th canissimia 🇦🇶 878 515 3ms 2 May 2024 131st GrayJoKing 🇦🇺 877 78 41ms 16 Apr 2024 131st pardouin 🇫🇷 877 78 496ms 9 Sep 2025 133rd bitsandbeyond 🇳🇱 876 93 461ms 5 Nov 2025 134th DialFrost 🇸🇬 876 95 59ms 2 Jun 2024 135th zygoloid 875 122 79ms 10 Aug 2024 135th albanian-laundromat 875 122 6ms 5 Sep 2025 137th m-tkach 🇺🇦 875 182 31ms 1 May 2024 138th msbranicky 874 227 26ms 6 May 2024 139th DialFrost 🇸🇬 873 97 1,063ms 8 Sep 2025 139th CaedenHarper 🇨🇦 873 97 816ms 27 Sep 2025 141st DialFrost 🇸🇬 873 194 462ms 28 Mar 2025 142nd Shanethegamer 🇺🇸 872 89 927ms 17 Apr 2024 142nd ovs-code 🇩🇪 872 89 1,014ms 18 Apr 2024 144th DialFrost 🇸🇬 872 93 24ms 18 Aug 2025 145th nwellnhof 🇩🇪 872 526 3ms 25 Apr 2024 146th DialFrost 🇸🇬 871 167 119ms 17 days ago 147th retrohun 870 115 396ms 26 May 2024 148th MeWhenI 🇻🇦 870 143 16ms 25 Apr 2024 149th stefangimmillaro 869 92 10ms 14 Apr 2024 150th JayXon 🇺🇸 869 218 1,751ms 14 Sep 2025 151st roupiq 🇵🇱 868 123 87ms 2 Oct 2025 151st KasperKivimaeki 🇫🇮 868 123 400ms 18 Nov 2025 153rd primo-ppcg 🇹🇭 867 84 91ms 23 Jan 2025 154th sean-niemann 🇺🇸 867 96 69ms 10 Mar 2025 154th GrayJoKing 🇦🇺 867 96 11ms 14 Jul 2025 156th stefangimmillaro 866 128 94ms 22 Oct 2024 157th DialFrost 🇸🇬 866 133 80ms 17 Nov 2024 158th stackofbears 864 44 36ms 20 Apr 2024 159th SirBogman 🇺🇸 864 46 2ms 16 Apr 2024 160th albanian-laundromat 864 98 778ms 22 Sep 2025 First Prev 81–160 of 1,427 Next Last