The Calendar hole will go live in approximately 34 hours. 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 798th CaedenHarper 🇨🇦 164 2,755 2ms 20 Jan 2025 798th JOrE20 🇺🇸 164 2,755 2ms 11 days ago 803rd ravnskjaer 🇩🇰 163 668 422ms 14 days ago 804th KatieLG 🇬🇧 159 812 3ms 30 Nov 2025 805th dokutan 155 687 3ms 28 Apr 2025 806th KatieLG 🇬🇧 155 1,146 7ms 13 Apr 2024 806th dokutan 155 1,146 9ms 13 Apr 2024 808th dokutan 152 750 4ms 6 Oct 2024 809th Shanethegamer 🇺🇸 149 866 3ms 13 Apr 2024 809th MeWhenI 🇻🇦 149 866 2ms 13 Apr 2024 809th HumanoidCPU 149 866 2ms 13 Apr 2024 809th Yewzir 🇧🇪 149 866 2ms 13 Apr 2024 809th bac0id 149 866 2ms 26 Jun 2024 809th CaedenHarper 🇨🇦 149 866 2ms 22 Jan 2025 815th KatieLG-Transpiler 🇬🇧 149 868 2ms 16 Aug 2024 815th Mabeloid 🇳🇴 149 868 2ms 17 Sep 2024 817th KatieLG 🇬🇧 148 881 256ms 30 Nov 2025 818th MeWhenI 🇻🇦 146 870 5ms 13 Apr 2024 818th HumanoidCPU 146 870 6ms 13 Apr 2024 818th Yewzir 🇧🇪 146 870 6ms 13 Apr 2024 818th KatieLG 🇬🇧 146 870 7ms 13 Apr 2024 818th Maximizer02 146 870 5ms 13 Apr 2024 818th dokutan 146 870 5ms 13 Apr 2024 818th Kaffeleif 146 870 5ms 15 Apr 2024 818th bac0id 146 870 6ms 25 Jun 2024 818th KatieLG-Transpiler 🇬🇧 146 870 5ms 16 Aug 2024 818th Mabeloid 🇳🇴 146 870 5ms 17 Sep 2024 818th CaedenHarper 🇨🇦 146 870 6ms 20 Jan 2025 829th Yewzir 🇧🇪 143 909 268ms 13 Apr 2024 829th HumanoidCPU 143 909 262ms 26 Aug 2024 831st bac0id 143 912 258ms 25 Jun 2024 832nd KatieLG 🇬🇧 142 752 4ms 22 Aug 2024 833rd KatieLG 🇬🇧 142 815 284ms 30 Nov 2025 834th Mabeloid 🇳🇴 142 914 278ms 17 Sep 2024 835th KatieLG-Transpiler 🇬🇧 142 916 265ms 16 Aug 2024 836th Languag3 141 920 263ms 21 Oct 2024 837th Stockoh 🇫🇷 141 3,214 2ms 22 Apr 2024 838th kkoenig 140 929 265ms 13 Sep 2024 839th KatieLG 🇬🇧 138 818 198ms 30 Nov 2025 840th MeWhenI 🇻🇦 137 866 3ms 13 Apr 2024 840th Yewzir 🇧🇪 137 866 3ms 13 Apr 2024 840th HumanoidCPU 137 866 3ms 13 Apr 2024 840th BREMAUCY 🇫🇷 137 866 3ms 16 Apr 2024 840th bac0id 137 866 3ms 25 Jun 2024 840th Shanethegamer 🇺🇸 137 866 3ms 6 Dec 2024 840th CaedenHarper 🇨🇦 137 866 3ms 20 Jan 2025 840th dokutan 137 866 3ms 23 Feb 2025 848th KatieLG 🇬🇧 136 830 65ms 30 Nov 2025 849th zakariamouhid 136 868 3ms 13 Apr 2024 850th KatieLG 🇬🇧 136 871 3ms 13 Apr 2024 850th KatieLG-Transpiler 🇬🇧 136 871 3ms 16 Aug 2024 850th Mabeloid 🇳🇴 136 871 3ms 17 Sep 2024 853rd dokutan 135 816 8ms 10 Sep 2025 854th HumanoidCPU 134 867 120ms 13 Apr 2024 854th Yewzir 🇧🇪 134 867 119ms 13 Apr 2024 854th bac0id 134 867 120ms 26 Jun 2024 854th Mabeloid 🇳🇴 134 867 137ms 17 Sep 2024 854th CaedenHarper 🇨🇦 134 867 114ms 22 Jan 2025 859th dokutan 132 757 2ms 2 Aug 2024 860th dokutan 132 821 42ms 9 Oct 2024 861st CaedenHarper 🇨🇦 131 869 3ms 22 Jan 2025 862nd MeWhenI 🇻🇦 131 870 3ms 13 Apr 2024 862nd HumanoidCPU 131 870 4ms 13 Apr 2024 862nd KatieLG 🇬🇧 131 870 3ms 13 Apr 2024 862nd Yewzir 🇧🇪 131 870 4ms 13 Apr 2024 862nd bac0id 131 870 4ms 25 Jun 2024 862nd KatieLG-Transpiler 🇬🇧 131 870 3ms 16 Aug 2024 862nd Mabeloid 🇳🇴 131 870 3ms 17 Sep 2024 862nd gigaprofisi 🇺🇸 131 870 3ms 6 Nov 2025 870th dokutan 130 800 129ms 3 Feb 2025 871st KatieLG 🇬🇧 130 835 417ms 30 Nov 2025 872nd MeWhenI 🇻🇦 130 870 64ms 13 Apr 2024 872nd HumanoidCPU 130 870 67ms 13 Apr 2024 872nd Yewzir 🇧🇪 130 870 64ms 13 Apr 2024 872nd bac0id 130 870 69ms 25 Jun 2024 872nd KatieLG-Transpiler 🇬🇧 130 870 78ms 16 Aug 2024 872nd Mabeloid 🇳🇴 130 870 65ms 17 Sep 2024 872nd xyangst 130 870 67ms 3 Oct 2024 872nd CaedenHarper 🇨🇦 130 870 72ms 20 Jan 2025 880th dokutan 129 782 1ms 6 Oct 2024 First Prev 801–880 of 1,437 Next Last