The Calendar hole will go live in approximately 7 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 881st KatieLG-Transpiler 🇬🇧 128 886 105ms 16 Aug 2024 882nd HumanoidCPU 127 870 65ms 13 Apr 2024 882nd Yewzir 🇧🇪 127 870 67ms 13 Apr 2024 882nd bac0id 127 870 61ms 26 Jun 2024 882nd Mabeloid 🇳🇴 127 870 68ms 17 Sep 2024 882nd The-Wolfson 127 870 66ms 18 Dec 2024 882nd CaedenHarper 🇨🇦 127 870 60ms 22 Jan 2025 882nd dokutan 127 870 65ms 3 Feb 2025 889th KatieLG 🇬🇧 127 871 67ms 13 Apr 2024 890th madeforlosers 127 3,559 2ms 8 Nov 2024 891st dokutan 126 842 18ms 20 Jul 2025 892nd HumanoidCPU 126 870 5ms 4 May 2024 892nd bac0id 126 870 5ms 26 Jun 2024 892nd KatieLG-Transpiler 🇬🇧 126 870 5ms 16 Aug 2024 892nd Mabeloid 🇳🇴 126 870 5ms 17 Sep 2024 892nd CaedenHarper 🇨🇦 126 870 6ms 20 Jan 2025 897th MeWhenI 🇻🇦 126 873 5ms 13 Apr 2024 898th dokutan 125 695 2ms 21 Jun 2025 899th mrmena 🇦🇺 125 821 40ms 16 Apr 2024 900th dokutan 125 848 6ms 12 Dec 2024 901st OfficialCB 125 875 5ms 23 Apr 2024 902nd KatieLG-Transpiler 🇬🇧 125 888 612ms 16 Aug 2024 903rd mrmena 🇦🇺 124 805 3ms 15 Apr 2024 904th KatieLG 🇬🇧 124 807 1,266ms 24 days ago 905th Shanethegamer 🇺🇸 124 871 42ms 22 Aug 2024 905th KatieLG 🇬🇧 124 871 41ms 22 Aug 2024 905th HumanoidCPU 124 871 38ms 25 Aug 2024 905th Mabeloid 🇳🇴 124 871 40ms 17 Sep 2024 905th CaedenHarper 🇨🇦 124 871 41ms 22 Jan 2025 905th gigaprofisi 🇺🇸 124 871 41ms 5 Nov 2025 911th KatieLG 🇬🇧 124 893 426ms 13 Apr 2024 911th HumanoidCPU 124 893 426ms 27 Jun 2024 913th Yewzir 🇧🇪 124 894 452ms 13 Apr 2024 913th bac0id 124 894 421ms 25 Jun 2024 915th CaedenHarper 🇨🇦 124 895 428ms 20 Jan 2025 916th Yewzir 🇧🇪 123 887 458ms 2 Oct 2025 916th WildTooth 123 887 414ms 9 Oct 2025 916th gigaprofisi 🇺🇸 123 887 412ms 5 Nov 2025 919th Mabeloid 🇳🇴 123 900 128ms 17 Sep 2024 920th gigaprofisi 🇺🇸 123 904 176ms 23 Jul 2025 921st KatieLG-Transpiler 🇬🇧 123 940 342ms 16 Aug 2024 922nd KatieLG 🇬🇧 122 817 373ms 24 days ago 923rd roupiq 🇵🇱 122 867 3ms 14 Apr 2024 923rd bac0id 122 867 3ms 26 Jun 2024 923rd Mabeloid 🇳🇴 122 867 3ms 17 Sep 2024 923rd HumanoidCPU 122 867 3ms 12 Dec 2024 923rd KatieLG 🇬🇧 122 867 3ms 12 Dec 2024 923rd Yewzir 🇧🇪 122 867 3ms 18 Dec 2024 923rd Shanethegamer 🇺🇸 122 867 3ms 11 Jan 2025 923rd madex 🇩🇪 122 867 3ms 13 Jan 2025 923rd BREMAUCY 🇫🇷 122 867 3ms 14 Jan 2025 923rd CaedenHarper 🇨🇦 122 867 3ms 22 Jan 2025 933rd HumanEquivalentUnit 122 871 9ms 21 Apr 2024 934th Shanethegamer 🇺🇸 122 873 8ms 13 Apr 2024 934th MeWhenI 🇻🇦 122 873 8ms 13 Apr 2024 934th HumanoidCPU 122 873 8ms 13 Apr 2024 934th Yewzir 🇧🇪 122 873 8ms 13 Apr 2024 934th bac0id 122 873 8ms 26 Jun 2024 934th Mabeloid 🇳🇴 122 873 8ms 17 Sep 2024 934th CaedenHarper 🇨🇦 122 873 9ms 22 Jan 2025 941st MeWhenI 🇻🇦 122 877 2ms 13 Apr 2024 941st HumanoidCPU 122 877 2ms 13 Apr 2024 941st Yewzir 🇧🇪 122 877 2ms 13 Apr 2024 941st bac0id 122 877 2ms 26 Jun 2024 941st KatieLG-Transpiler 🇬🇧 122 877 2ms 16 Aug 2024 941st Mabeloid 🇳🇴 122 877 2ms 17 Sep 2024 941st CaedenHarper 🇨🇦 122 877 2ms 22 Jan 2025 948th Schmitt-Very-Cool 122 889 441ms 26 Sep 2025 949th KatieLG 🇬🇧 121 876 8ms 13 Apr 2024 949th KatieLG-Transpiler 🇬🇧 121 876 8ms 16 Aug 2024 951st KatieLG-Transpiler 🇬🇧 121 919 173ms 16 Aug 2024 952nd dokutan 120 665 9ms 20 Apr 2025 953rd dokutan 120 828 1,204ms 14 Oct 2024 954th MeWhenI 🇻🇦 120 879 108ms 13 Apr 2024 954th HumanoidCPU 120 879 119ms 13 Apr 2024 954th Yewzir 🇧🇪 120 879 111ms 13 Apr 2024 954th dokutan 120 879 119ms 2 May 2024 954th bac0id 120 879 98ms 25 Jun 2024 954th CaedenHarper 🇨🇦 120 879 96ms 20 Jan 2025 954th gigaprofisi 🇺🇸 120 879 105ms 13 Nov 2025 First Prev 881–960 of 1,429 Next Last