The Calendar hole will go live in approximately 12 days. Why not try and solve it ahead of time?
Prime Numbers 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 317th andersk 🇺🇸 948 43 132ms 24 Mar 2020 317th GrayJoKing 🇦🇺 948 43 110ms 4 Dec 2020 317th prplz 🇦🇺 948 43 113ms 4 Dec 2020 317th sisyphus-ppcg 🇦🇺 948 43 113ms 27 Jan 2021 317th JayXon 🇺🇸 948 43 115ms 18 Feb 2021 317th lynn 948 43 113ms 14 Mar 2021 317th xnor-gate 948 43 116ms 29 Apr 2021 317th Lydxn 🇨🇦 948 43 112ms 19 Jun 2021 317th Steffan153 🇫🇮 948 43 112ms 11 Jan 2023 317th btnlq 948 43 112ms 14 Oct 2023 317th ovs-code 🇩🇪 948 43 109ms 11 Nov 2023 317th Yewzir 🇧🇪 948 43 117ms 17 Feb 2024 317th DialFrost 🇸🇬 948 43 114ms 4 Aug 2024 317th pardouin 🇫🇷 948 43 124ms 22 Aug 2024 317th alomiF 948 43 115ms 22 Aug 2024 317th sean-niemann 🇺🇸 948 43 123ms 29 Dec 2024 317th Natanaelel 🇸🇪 948 43 116ms 22 Apr 2025 317th YAJUE114514 948 43 118ms 15 Aug 2025 317th fuzzylojik-golf 🇺🇸 948 43 110ms 27 Aug 2025 317th albanian-laundromat 948 43 115ms 4 Oct 2025 317th iczelia 🇩🇪 948 43 113ms 19 Oct 2025 342nd JayXon 🇺🇸 948 66 579ms 24 Sep 2025 342nd sean-niemann 🇺🇸 948 66 410ms 24 Sep 2025 342nd namelessiw 948 66 450ms 4 Oct 2025 342nd MeWhenI 🇻🇦 948 66 556ms 7 Nov 2025 346th btnlq 947 53 342ms 10 Mar 2023 346th JayXon 🇺🇸 947 53 336ms 10 Mar 2023 346th Lydxn 🇨🇦 947 53 360ms 19 May 2023 346th AdrienHache 🇫🇷 947 53 329ms 20 Jun 2023 346th stefangimmillaro 947 53 339ms 15 Jul 2023 346th MeWhenI 🇻🇦 947 53 348ms 26 Jul 2023 346th namelessiw 947 53 375ms 12 Dec 2023 346th sean-niemann 🇺🇸 947 53 392ms 23 Dec 2024 346th Yax42 🇫🇷 947 53 376ms 9 Feb 2025 355th Lydxn 🇨🇦 946 28 761ms 6 Feb 2022 355th antimon2 🇯🇵 946 28 624ms 2 Oct 2022 357th GrayJoKing 🇦🇺 945 21 2ms 28 Dec 2020 357th HPWiz 🇳🇿 945 21 2ms 7 Feb 2022 357th Lydxn 🇨🇦 945 21 2ms 4 Aug 2023 357th MeWhenI 🇻🇦 945 21 2ms 15 Feb 2025 361st nwellnhof 🇩🇪 945 37 9ms 31 Oct 2021 361st jansekulowicz 945 37 9ms 14 May 2022 361st AlephSquirrel 945 37 9ms 18 Jul 2022 361st stefangimmillaro 945 37 9ms 18 Nov 2023 361st Just4FunCoder 945 37 9ms 18 Feb 2024 361st Yewzir 🇧🇪 945 37 9ms 9 Jun 2024 361st SirBogman 🇺🇸 945 37 9ms 12 Aug 2025 361st CaedenHarper 🇨🇦 945 37 9ms 18 Aug 2025 369th primo-ppcg 🇹🇭 945 41 1ms 17 Dec 2018 369th Waffle3z 945 41 1ms 18 Oct 2020 369th DaDerpDuck 945 41 1ms 22 Jan 2021 369th sisyphus-ppcg 🇦🇺 945 41 1ms 7 Apr 2021 369th Lydxn 🇨🇦 945 41 1ms 12 Jul 2021 369th JayXon 🇺🇸 945 41 1ms 12 Jul 2021 369th GrayJoKing 🇦🇺 945 41 1ms 8 Apr 2022 369th jared-hughes 945 41 2ms 6 Jul 2022 369th btnlq 945 41 1ms 25 Dec 2022 369th MeWhenI 🇻🇦 945 41 1ms 31 Dec 2022 369th Steffan153 🇫🇮 945 41 2ms 21 Feb 2023 369th jacobly0 🇺🇸 945 41 2ms 10 Sep 2023 369th xsot 🇸🇬 945 41 1ms 10 Oct 2023 369th lynn 945 41 1ms 23 Jun 2024 369th pardouin 🇫🇷 945 41 1ms 5 Oct 2024 369th koipondx86 945 41 1ms 5 Nov 2024 369th FlyingPenguin223 945 41 1ms 5 Nov 2024 369th sean-niemann 🇺🇸 945 41 1ms 17 Jan 2025 369th fuzzylojik-golf 🇺🇸 945 41 1ms 6 Jul 2025 369th snoozingnewt 🇨🇦 945 41 1ms 7 days ago 389th xsot 🇸🇬 942 52 2ms 12 Oct 2023 390th JayXon 🇺🇸 942 61 113ms 13 Jan 2022 390th Lydxn 🇨🇦 942 61 114ms 13 Jan 2022 390th primo-ppcg 🇹🇭 942 61 122ms 14 Jan 2022 390th lynn 942 61 117ms 10 Mar 2022 390th ndren 942 61 132ms 27 Sep 2023 390th stefangimmillaro 942 61 122ms 18 Oct 2023 390th pardouin 🇫🇷 942 61 123ms 24 Aug 2024 390th edsrzf 🇳🇿 942 61 116ms 26 Oct 2024 390th acotis 942 61 118ms 10 Jan 2025 390th fuzzylojik-golf 🇺🇸 942 61 118ms 28 Jun 2025 390th kumavale 942 61 127ms 26 Aug 2025 First Prev 321–400 of 5,319 Next Last