The Calendar hole will go live in approximately 10 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 873rd Shanethegamer 🇺🇸 884 65 130ms 2 Dec 2022 873rd rucin93 🇵🇱 884 65 132ms 20 Jan 2023 873rd klixel 🇨🇦 884 65 122ms 15 Apr 2023 873rd Re-Adventures 🇮🇳 884 65 119ms 15 Jul 2023 873rd The3gs 884 65 132ms 18 Aug 2023 873rd msbranicky 884 65 148ms 1 Oct 2023 873rd sean-niemann 🇺🇸 884 65 122ms 24 Oct 2023 873rd okaponta 884 65 120ms 11 Jan 2024 873rd Creative0708 🇨🇦 884 65 125ms 17 Feb 2024 873rd MeWhenI 🇻🇦 884 65 123ms 31 Mar 2024 873rd Aurel300 🇨🇭 884 65 128ms 5 Jun 2024 873rd dokutan 884 65 133ms 26 Jul 2024 873rd wuzekai518 884 65 128ms 5 Aug 2024 873rd snoozingnewt 🇨🇦 884 65 124ms 29 Sep 2025 873rd namelessiw 884 65 124ms 11 Nov 2025 873rd luuumine 🇫🇷 884 65 124ms 19 Nov 2025 897th sisyphus-ppcg 🇦🇺 883 52 2ms 9 Oct 2023 897th Lydxn 🇨🇦 883 52 1ms 9 Oct 2023 897th Steffan153 🇫🇮 883 52 1ms 29 Jan 2024 897th MeWhenI 🇻🇦 883 52 1ms 18 Aug 2024 897th DialFrost 🇸🇬 883 52 1ms 19 Nov 2025 902nd kg583 🇺🇸 883 57 37ms 14 Feb 2025 903rd primo-ppcg 🇹🇭 882 55 5ms 30 Jan 2022 903rd Lydxn 🇨🇦 882 55 5ms 30 Jan 2022 903rd AlephSquirrel 882 55 5ms 10 Oct 2024 906th edsrzf 🇳🇿 881 71 427ms 24 Sep 2025 906th b-illy 🇬🇧 881 71 437ms 24 Sep 2025 906th voytxt 🇨🇿 881 71 495ms 25 Sep 2025 906th stefangimmillaro 881 71 443ms 6 Oct 2025 906th h3ra993huskp 🇯🇵 881 71 605ms 21 days ago 906th ScottHamper 881 71 444ms 21 days ago 912th primo-ppcg 🇹🇭 878 91 274ms 21 Apr 2020 912th prplz 🇦🇺 878 91 271ms 24 Apr 2020 912th stefangimmillaro 878 91 278ms 21 Aug 2023 915th Shanethegamer 🇺🇸 878 111 9ms 1 Aug 2023 915th Lydxn 🇨🇦 878 111 9ms 1 Aug 2023 915th MeWhenI 🇻🇦 878 111 9ms 1 Aug 2023 915th JayXon 🇺🇸 878 111 10ms 2 Aug 2023 915th Steffan153 🇫🇮 878 111 9ms 2 Aug 2023 915th janbehrens 🇩🇪 878 111 10ms 2 Aug 2023 915th GrayJoKing 🇦🇺 878 111 10ms 11 Aug 2023 915th BREMAUCY 🇫🇷 878 111 9ms 7 Sep 2023 915th Attero 🇸🇪 878 111 10ms 20 Sep 2023 915th lynn 878 111 9ms 17 Oct 2023 915th dokutan 878 111 9ms 26 Oct 2023 915th Yewzir 🇧🇪 878 111 9ms 12 Mar 2024 915th rucin93 🇵🇱 878 111 11ms 10 May 2024 915th HumanoidCPU 878 111 10ms 18 May 2024 915th KatieLG 🇬🇧 878 111 10ms 8 Jul 2024 915th pardouin 🇫🇷 878 111 9ms 20 Aug 2024 915th GolfingSuccess 🇬🇷 878 111 10ms 31 Aug 2024 915th emgordon154 878 111 9ms 4 Dec 2024 915th CaedenHarper 🇨🇦 878 111 9ms 24 Jan 2025 915th albanian-laundromat 878 111 10ms 20 Jul 2025 915th Babafaba 878 111 10ms 24 Oct 2025 915th snoozingnewt 🇨🇦 878 111 10ms 16 days ago 937th scpchicken 🇵🇼 876 21 125ms 10 Mar 2022 938th cure-honey 🇯🇵 876 51 40ms 15 Jul 2021 938th Lydxn 🇨🇦 876 51 40ms 15 Jul 2021 940th Lydxn 🇨🇦 876 94 1,875ms 22 Apr 2024 940th JayXon 🇺🇸 876 94 1,733ms 22 Apr 2024 942nd darryletc 875 40 9ms 8 Jan 2019 942nd janlelis 875 40 9ms 10 Feb 2021 942nd 051 🇸🇬 875 40 9ms 19 Aug 2022 942nd nstearns96 🇬🇧 875 40 9ms 28 Nov 2022 942nd NickTheEASDude 🇺🇸 875 40 9ms 11 Apr 2024 942nd LordSir101 875 40 9ms 11 Aug 2025 948th sisyphus-ppcg 🇦🇺 875 41 2ms 4 Nov 2022 949th prplz 🇦🇺 875 56 2ms 2 Jan 2022 949th Irratix 🇳🇱 875 56 1ms 13 Jun 2022 949th roupiq 🇵🇱 875 56 2ms 14 Apr 2024 949th sean-niemann 🇺🇸 875 56 1ms 25 Feb 2025 949th DialFrost 🇸🇬 875 56 2ms 14 Nov 2025 954th DialFrost 🇸🇬 874 109 443ms 6 Mar 2025 954th MeWhenI 🇻🇦 874 109 460ms 28 Mar 2025 954th emgordon154 874 109 451ms 29 Apr 2025 957th emgordon154 873 61 98ms 24 days ago 957th DialFrost 🇸🇬 873 61 129ms 24 days ago 957th GolfingSuccess 🇬🇷 873 61 101ms 24 days ago 957th edsrzf 🇳🇿 873 61 114ms 23 days ago First Prev 881–960 of 5,321 Next Last