The Calendar hole will go live in approximately 8 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 800th Mabeloid 🇳🇴 149 868 2ms 17 Sep 2024 802nd KatieLG 🇬🇧 147 881 256ms 22 days ago 803rd MeWhenI 🇻🇦 146 870 5ms 13 Apr 2024 803rd HumanoidCPU 146 870 6ms 13 Apr 2024 803rd Yewzir 🇧🇪 146 870 6ms 13 Apr 2024 803rd KatieLG 🇬🇧 146 870 7ms 13 Apr 2024 803rd Maximizer02 146 870 5ms 13 Apr 2024 803rd dokutan 146 870 5ms 13 Apr 2024 803rd Kaffeleif 146 870 5ms 15 Apr 2024 803rd bac0id 146 870 6ms 25 Jun 2024 803rd KatieLG-Transpiler 🇬🇧 146 870 5ms 16 Aug 2024 803rd Mabeloid 🇳🇴 146 870 5ms 17 Sep 2024 803rd CaedenHarper 🇨🇦 146 870 6ms 20 Jan 2025 814th Yewzir 🇧🇪 143 909 268ms 13 Apr 2024 814th HumanoidCPU 143 909 262ms 26 Aug 2024 816th KatieLG 🇬🇧 142 752 4ms 22 Aug 2024 817th KatieLG 🇬🇧 142 815 284ms 22 days ago 818th bac0id 142 912 258ms 25 Jun 2024 819th Mabeloid 🇳🇴 142 914 278ms 17 Sep 2024 820th KatieLG-Transpiler 🇬🇧 142 916 265ms 16 Aug 2024 821st Languag3 141 920 263ms 21 Oct 2024 822nd Stockoh 🇫🇷 141 3,214 2ms 22 Apr 2024 823rd kkoenig 140 929 265ms 13 Sep 2024 824th KatieLG 🇬🇧 138 818 198ms 22 days ago 825th MeWhenI 🇻🇦 137 866 3ms 13 Apr 2024 825th Yewzir 🇧🇪 137 866 3ms 13 Apr 2024 825th HumanoidCPU 137 866 3ms 13 Apr 2024 825th BREMAUCY 🇫🇷 137 866 3ms 16 Apr 2024 825th bac0id 137 866 4ms 25 Jun 2024 825th Shanethegamer 🇺🇸 137 866 3ms 6 Dec 2024 825th CaedenHarper 🇨🇦 137 866 3ms 20 Jan 2025 825th dokutan 137 866 3ms 23 Feb 2025 833rd KatieLG 🇬🇧 136 830 65ms 22 days ago 834th zakariamouhid 136 868 3ms 13 Apr 2024 835th KatieLG 🇬🇧 136 871 3ms 13 Apr 2024 835th KatieLG-Transpiler 🇬🇧 136 871 3ms 16 Aug 2024 835th Mabeloid 🇳🇴 136 871 3ms 17 Sep 2024 838th dokutan 135 816 8ms 10 Sep 2025 839th HumanoidCPU 134 867 120ms 13 Apr 2024 839th Yewzir 🇧🇪 134 867 119ms 13 Apr 2024 839th bac0id 134 867 120ms 26 Jun 2024 839th Mabeloid 🇳🇴 134 867 137ms 17 Sep 2024 839th CaedenHarper 🇨🇦 134 867 114ms 22 Jan 2025 844th dokutan 132 757 3ms 2 Aug 2024 845th dokutan 132 821 42ms 9 Oct 2024 846th CaedenHarper 🇨🇦 132 869 3ms 22 Jan 2025 847th MeWhenI 🇻🇦 132 870 3ms 13 Apr 2024 847th HumanoidCPU 132 870 4ms 13 Apr 2024 847th KatieLG 🇬🇧 132 870 3ms 13 Apr 2024 847th Yewzir 🇧🇪 132 870 4ms 13 Apr 2024 847th bac0id 132 870 4ms 25 Jun 2024 847th KatieLG-Transpiler 🇬🇧 132 870 3ms 16 Aug 2024 847th Mabeloid 🇳🇴 132 870 3ms 17 Sep 2024 847th gigaprofisi 🇺🇸 132 870 3ms 6 Nov 2025 855th dokutan 131 847 481ms 7 Nov 2025 856th dokutan 130 800 129ms 3 Feb 2025 857th KatieLG 🇬🇧 130 835 417ms 22 days ago 858th MeWhenI 🇻🇦 130 870 64ms 13 Apr 2024 858th HumanoidCPU 130 870 67ms 13 Apr 2024 858th Yewzir 🇧🇪 130 870 64ms 13 Apr 2024 858th bac0id 130 870 69ms 25 Jun 2024 858th KatieLG-Transpiler 🇬🇧 130 870 78ms 16 Aug 2024 858th Mabeloid 🇳🇴 130 870 65ms 17 Sep 2024 858th xyangst 130 870 67ms 3 Oct 2024 858th CaedenHarper 🇨🇦 130 870 72ms 20 Jan 2025 866th dokutan 129 782 2ms 6 Oct 2024 867th KatieLG 🇬🇧 129 852 10ms 22 days ago 868th MarkShcerbakov 128 780 385ms 14 Aug 2024 869th KatieLG 🇬🇧 128 826 105ms 22 days ago 870th HumanoidCPU 128 882 110ms 13 Apr 2024 870th Yewzir 🇧🇪 128 882 111ms 13 Apr 2024 870th dokutan 128 882 112ms 14 Apr 2024 870th RealAMC 🇳🇿 128 882 114ms 24 Apr 2024 870th bac0id 128 882 114ms 26 Jun 2024 870th JGDoerrer 128 882 112ms 17 Jul 2024 870th Mabeloid 🇳🇴 128 882 110ms 17 Sep 2024 870th CaedenHarper 🇨🇦 128 882 147ms 22 Jan 2025 878th KatieLG-Transpiler 🇬🇧 128 886 105ms 16 Aug 2024 879th HumanoidCPU 127 870 65ms 13 Apr 2024 879th Yewzir 🇧🇪 127 870 67ms 13 Apr 2024 First Prev 801–880 of 1,426 Next Last