The Calendar hole will go live in approximately 4 days. Why not try and solve it ahead of time?
Prime Numbers (Long) in all languages in chars. 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 Chars Time Submitted 801st btnlq 879 32 415ms 5 Dec 2021 801st Steffan153 🇫🇮 879 32 4,139ms 9 Aug 2024 801st SirBogman 🇺🇸 879 32 477ms 13 Aug 2025 804th Shanethegamer 🇺🇸 879 56 289ms 10 Sep 2022 805th zacjl 877 60 32ms 10 Oct 2024 805th emgordon154 877 60 27ms 10 Dec 2024 807th GrayJoKing 🇦🇺 877 73 480ms 4 Mar 2022 808th primo-ppcg 🇹🇭 877 99 403ms 5 Dec 2021 808th janbehrens 🇩🇪 877 99 327ms 6 Dec 2021 808th DialFrost 🇸🇬 877 99 311ms 21 Nov 2025 811th nwellnhof 🇩🇪 876 37 2,685ms 9 Jun 2022 811th fuzzylojik-golf 🇺🇸 876 37 2,480ms 19 Jul 2025 813th GolfingSuccess 🇬🇷 876 80 95ms 2 Jan 2022 813th m-tkach 🇺🇦 876 80 465ms 2 Jan 2022 813th iakolzin 876 80 95ms 2 Jun 2022 813th sean-niemann 🇺🇸 876 80 101ms 14 Oct 2022 813th Steffan153 🇫🇮 876 80 106ms 27 Mar 2023 813th Irratix 🇳🇱 876 80 96ms 3 Aug 2023 813th DialFrost 🇸🇬 876 80 98ms 3 Nov 2023 813th xsot 🇸🇬 876 80 101ms 30 Jan 2024 813th ovs-code 🇩🇪 876 80 98ms 4 May 2024 813th JohandeRuiter 🇳🇱 876 80 452ms 31 Aug 2024 813th Yax42 🇫🇷 876 80 97ms 4 Oct 2025 824th CameronGBell 875 49 192ms 16 Nov 2022 824th snydej 875 49 152ms 3 Dec 2024 826th j2e2 🇪🇸 875 55 144ms 3 Mar 2025 827th prplz 🇦🇺 874 21 157ms 6 Dec 2021 827th Steffan153 🇫🇮 874 21 161ms 30 Oct 2022 827th DialFrost 🇸🇬 874 21 160ms 10 Feb 2023 827th SirFireball3521 874 21 171ms 27 Feb 2023 827th Natanaelel 🇸🇪 874 21 174ms 3 Dec 2023 827th ovs-code 🇩🇪 874 21 153ms 29 Dec 2023 827th pardouin 🇫🇷 874 21 185ms 20 Aug 2024 827th sean-niemann 🇺🇸 874 21 187ms 17 Jan 2025 827th fuzzylojik-golf 🇺🇸 874 21 172ms 20 Jun 2025 827th edsrzf 🇳🇿 874 21 132ms 12 Oct 2025 837th shellbertt 🇨🇦 872 36 44ms 6 Dec 2021 837th orthoplex 🇨🇽 872 36 44ms 30 Mar 2022 837th DaCuteRaccoon 872 36 41ms 17 Apr 2022 837th jared-hughes 872 36 45ms 20 Sep 2022 837th OhmNomNom 872 36 46ms 9 Oct 2022 837th annaproxy 872 36 45ms 15 Sep 2023 837th dokutan 872 36 46ms 30 Apr 2024 837th LostSyntax21 🇬🇧 872 36 46ms 24 Jul 2025 845th edsrzf 🇳🇿 872 59 131ms 11 Feb 2025 845th DialFrost 🇸🇬 872 59 137ms 25 Jun 2025 847th clockworknazo 871 19 98ms 9 Aug 2022 847th saito-ta 🇯🇵 871 19 505ms 7 Nov 2022 849th duckyluuk 🇳🇱 871 52 3,059ms 25 Oct 2024 849th Briseglace 871 52 3,123ms 8 Apr 2025 851st Jacob385 870 45 570ms 4 Apr 2024 851st RedzGoose 🇦🇺 870 45 531ms 12 Sep 2024 853rd GolfingSuccess 🇬🇷 870 59 42ms 5 Dec 2021 853rd GrayJoKing 🇦🇺 870 59 42ms 4 Mar 2022 853rd MeWhenI 🇻🇦 870 59 43ms 6 Nov 2022 853rd Bmrl7 870 59 40ms 11 Jul 2023 853rd Widgitty 870 59 51ms 31 Jul 2023 853rd Attero 🇸🇪 870 59 50ms 20 Sep 2023 853rd AdrienHache 🇫🇷 870 59 44ms 6 Jan 2024 853rd Mandrzejy 🇵🇱 870 59 4,944ms 31 May 2024 853rd CaedenHarper 🇨🇦 870 59 43ms 26 Jan 2025 853rd emgordon154 870 59 44ms 1 Jul 2025 853rd fuzzylojik-golf 🇺🇸 870 59 44ms 14 Aug 2025 853rd Yax42 🇫🇷 870 59 43ms 15 Oct 2025 865th dmrichwa 🇺🇸 869 42 92ms 19 Oct 2023 865th targrik 869 42 52ms 19 Feb 2025 865th Yax42 🇫🇷 869 42 52ms 10 Sep 2025 868th GrayJoKing 🇦🇺 869 55 1,201ms 19 Nov 2025 868th ovs-code 🇩🇪 869 55 1,172ms 19 Nov 2025 870th 0xjac 🇨🇭 869 100 271ms 18 Nov 2025 871st DialFrost 🇸🇬 868 43 189ms 3 Aug 2024 871st GrayJoKing 🇦🇺 868 43 171ms 4 Aug 2024 871st pardouin 🇫🇷 868 43 185ms 28 Feb 2025 874th Steffan153 🇫🇮 868 52 189ms 9 Feb 2023 875th GrayJoKing 🇦🇺 868 76 214ms 20 Jan 2023 875th Steffan153 🇫🇮 868 76 207ms 31 Mar 2023 875th lynn 868 76 132ms 18 Jul 2023 875th m-tkach 🇺🇦 868 76 199ms 3 Aug 2023 879th canissimia 🇦🇶 868 116 1,945ms 14 Nov 2022 880th Garklein 🇨🇦 867 15 34ms 4 Jan 2022 First Prev 801–880 of 2,939 Next Last