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 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 1st 2bular 1,000 38 36ms 19 Sep 2025 2nd 2bular 993 40 2ms 11 Aug 2024 2nd ovs-code 🇩🇪 993 40 3ms 15 Aug 2024 2nd GrayJoKing 🇦🇺 993 40 3ms 28 Jun 2025 5th ovs-code 🇩🇪 974 39 33ms 13 Apr 2024 6th zacjl 969 41 2ms 19 Sep 2024 7th JayXon 🇺🇸 967 86 11ms 29 Apr 2024 8th ovs-code 🇩🇪 964 51 260ms 14 Apr 2024 8th emgordon154 964 51 59ms 8 Sep 2025 10th JayXon 🇺🇸 952 84 10ms 15 Aug 2024 11th xsot 🇸🇬 951 72 48ms 13 Apr 2024 11th Natanaelel 🇸🇪 951 72 51ms 13 Apr 2024 11th ovs-code 🇩🇪 951 72 48ms 13 Apr 2024 11th JayXon 🇺🇸 951 72 50ms 19 Apr 2024 11th nwellnhof 🇩🇪 951 72 47ms 22 Apr 2024 11th radarek 🇵🇱 951 72 50ms 7 Jul 2024 11th sean-niemann 🇺🇸 951 72 50ms 29 Jul 2024 11th janlelis 951 72 59ms 21 Sep 2024 11th sisyphus-ppcg 🇦🇺 951 72 68ms 5 Jan 2025 11th error256 951 72 52ms 27 hours ago 21st rhdqor213 941 90 3ms 28 Apr 2024 22nd Kacarott 🇦🇺 940 96 739ms 6 May 2024 22nd error256 940 96 742ms 16 May 2024 24th GrayJoKing 🇦🇺 939 63 5ms 16 Apr 2024 25th TFeld00 🇩🇰 938 73 50ms 3 Sep 2024 26th JayXon 🇺🇸 937 85 362ms 29 Apr 2024 27th GrayJoKing 🇦🇺 936 69 129ms 13 Apr 2024 28th ovs-code 🇩🇪 931 78 1,543ms 17 Apr 2024 28th antimon2 🇯🇵 931 78 1,754ms 17 Apr 2024 30th Steffan153 🇫🇮 930 86 10ms 15 Apr 2024 30th nwellnhof 🇩🇪 930 86 10ms 21 Apr 2024 30th sean-niemann 🇺🇸 930 86 10ms 22 Jan 2025 33rd MeWhenI 🇻🇦 928 53 841ms 21 Apr 2024 34th AdrienHache 🇫🇷 927 73 54ms 21 Sep 2024 35th canissimia 🇦🇶 926 84 82ms 20 hours ago 36th nwellnhof 🇩🇪 926 88 269ms 12 Oct 2024 37th Steffan153 🇫🇮 924 43 2ms 17 Apr 2024 37th copy 924 43 4ms 20 Apr 2024 37th HPWiz 🇳🇿 924 43 4ms 20 Apr 2024 40th JayXon 🇺🇸 924 84 961ms 19 Apr 2024 41st btnlq 924 90 50ms 13 Apr 2024 42nd ovs-code 🇩🇪 923 79 85ms 17 days ago 43rd btnlq 922 86 2,576ms 22 Aug 2024 44th JayXon 🇺🇸 922 118 461ms 5 Oct 2025 45th saito-ta 🇯🇵 921 79 746ms 15 Apr 2024 46th sean-niemann 🇺🇸 921 94 487ms 2 May 2024 46th DialFrost 🇸🇬 921 94 483ms 17 Aug 2025 48th JayXon 🇺🇸 921 108 390ms 6 Dec 2024 49th JayXon 🇺🇸 921 116 64ms 28 Apr 2024 50th rucin93 🇵🇱 919 87 14ms 1 May 2024 51st Yax42 🇫🇷 915 119 446ms 5 Oct 2025 52nd pardouin 🇫🇷 914 91 76ms 18 Apr 2024 52nd 4atj 914 91 13ms 30 Jun 2025 54th SirBogman 🇺🇸 913 75 52ms 18 Apr 2024 55th ovs-code 🇩🇪 913 117 62ms 10 Mar 2025 56th JayXon 🇺🇸 913 124 143ms 13 Jun 2024 57th AdrienHache 🇫🇷 912 109 407ms 7 Feb 2025 57th Yax42 🇫🇷 912 109 401ms 20 Jun 2025 59th HPWiz 🇳🇿 911 90 379ms 24 Apr 2024 60th KasperKivimaeki 🇫🇮 911 93 3ms 10 Oct 2025 61st JayXon 🇺🇸 910 96 132ms 25 Oct 2024 62nd saito-ta 🇯🇵 910 110 1,400ms 25 Apr 2024 63rd JayXon 🇺🇸 909 96 3ms 19 Nov 2025 64th lynn 909 114 319ms 20 days ago 65th JayXon 🇺🇸 905 98 118ms 19 Apr 2024 66th GrayJoKing 🇦🇺 905 117 1,520ms 25 Nov 2025 67th nwellnhof 🇩🇪 904 92 75ms 12 Oct 2024 67th Seek64 🇩🇪 904 92 57ms 26 May 2025 69th JayXon 🇺🇸 904 100 3,341ms 10 Nov 2024 70th JayXon 🇺🇸 904 112 3ms 19 Apr 2024 71st JayXon 🇺🇸 904 117 120ms 19 Apr 2024 72nd primo-ppcg 🇹🇭 903 105 45ms 29 Apr 2025 73rd JayXon 🇺🇸 903 144 265ms 18 Apr 2024 74th GrayJoKing 🇦🇺 902 96 484ms 2 May 2024 75th ovs-code 🇩🇪 902 100 639ms 17 Apr 2024 76th anter69 🇭🇺 901 76 47ms 25 Oct 2024 76th D-MOVE 🇵🇭 901 76 49ms 17 days ago 78th ovs-code 🇩🇪 901 88 2,471ms 21 Aug 2024 79th ovs-code 🇩🇪 901 94 2ms 28 Apr 2024 79th sean-niemann 🇺🇸 901 94 1,300ms 16 Sep 2025 1–80 of 1,431 Next Last