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 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 719th orthoplex 🇨🇽 913 66 1ms 29 Jun 2023 719th UnderKoen 🇳🇱 913 66 1ms 21 May 2025 723rd sisyphus-ppcg 🇦🇺 912 18 37ms 23 Jul 2022 723rd HPWiz 🇳🇿 912 18 37ms 13 Oct 2022 723rd primo-ppcg 🇹🇭 912 18 57ms 7 Dec 2022 723rd orthoplex 🇨🇽 912 18 35ms 5 Oct 2023 723rd lynn 912 18 37ms 16 Oct 2023 723rd AlephSquirrel 912 18 61ms 28 Dec 2023 723rd xsot 🇸🇬 912 18 37ms 9 Jun 2024 723rd pardouin 🇫🇷 912 18 40ms 24 Oct 2024 723rd fuzzylojik-golf 🇺🇸 912 18 38ms 4 Aug 2025 723rd CaedenHarper 🇨🇦 912 18 35ms 4 Sep 2025 733rd inventshah 912 47 2ms 9 Sep 2022 733rd Lydxn 🇨🇦 912 47 2ms 9 Sep 2022 733rd sisyphus-ppcg 🇦🇺 912 47 2ms 10 Sep 2022 733rd JayXon 🇺🇸 912 47 2ms 10 Sep 2022 733rd GrayJoKing 🇦🇺 912 47 2ms 11 Sep 2022 733rd btnlq 912 47 2ms 11 Sep 2022 733rd Steffan153 🇫🇮 912 47 2ms 25 Mar 2023 733rd m-tkach 🇺🇦 912 47 2ms 31 Jan 2024 733rd sean-niemann 🇺🇸 912 47 2ms 1 Jan 2025 733rd albanian-laundromat 912 47 2ms 7 Jun 2025 733rd fuzzylojik-golf 🇺🇸 912 47 2ms 18 Jul 2025 733rd snoozingnewt 🇨🇦 912 47 2ms 7 days ago 745th marshallward 🇺🇸 912 49 41ms 29 Jun 2022 746th Lydxn 🇨🇦 912 54 99ms 14 Oct 2022 746th JayXon 🇺🇸 912 54 98ms 13 Jun 2023 748th Yewzir 🇧🇪 912 63 119ms 17 Feb 2024 748th elgan65536 912 63 114ms 4 Apr 2024 748th DialFrost 🇸🇬 912 63 118ms 11 Apr 2025 751st Steffan153 🇫🇮 911 47 5ms 11 Dec 2023 751st Yewzir 🇧🇪 911 47 6ms 14 Dec 2023 751st Lydxn 🇨🇦 911 47 5ms 20 Dec 2023 751st dokutan 911 47 5ms 4 May 2024 751st zacjl 911 47 5ms 11 Oct 2024 751st emgordon154 911 47 5ms 5 Dec 2024 751st error256 911 47 5ms 27 Dec 2024 751st edsrzf 🇳🇿 911 47 6ms 12 Feb 2025 751st sean-niemann 🇺🇸 911 47 5ms 19 Apr 2025 751st Shanethegamer 🇺🇸 911 47 5ms 22 Apr 2025 751st kg583 🇺🇸 911 47 7ms 30 Jul 2025 762nd JayXon 🇺🇸 911 48 98ms 25 Feb 2021 762nd sisyphus-ppcg 🇦🇺 911 48 103ms 25 Feb 2021 762nd Lydxn 🇨🇦 911 48 98ms 25 Feb 2021 762nd primo-ppcg 🇹🇭 911 48 98ms 1 Apr 2021 762nd MeWhenI 🇻🇦 911 48 97ms 18 Aug 2021 762nd Shanethegamer 🇺🇸 911 48 99ms 28 Dec 2021 762nd Steffan153 🇫🇮 911 48 104ms 25 Mar 2023 762nd Yewzir 🇧🇪 911 48 102ms 14 May 2023 762nd Betuaredead 911 48 101ms 12 Nov 2023 762nd sean-niemann 🇺🇸 911 48 100ms 12 Nov 2023 762nd dokutan 911 48 102ms 28 Mar 2024 762nd fuzzylojik-golf 🇺🇸 911 48 98ms 31 Aug 2025 774th GolfingSuccess 🇬🇷 909 39 397ms 15 Jan 2024 774th orthoplex 🇨🇽 909 39 375ms 18 Jan 2024 774th neel11235813 909 39 369ms 10 Mar 2024 774th MeWhenI 🇻🇦 909 39 377ms 24 May 2024 774th AlephSquirrel 909 39 331ms 19 Jul 2024 774th KatieLG 🇬🇧 909 39 348ms 17 Aug 2024 774th Mukundan314 909 39 361ms 16 Jun 2025 781st bendiscz 909 94 273ms 19 Apr 2020 781st masterada 909 94 278ms 26 Mar 2021 781st emplv 🇱🇻 909 94 301ms 31 Aug 2021 781st kkoenig 909 94 262ms 10 Sep 2025 785th Lydxn 🇨🇦 908 42 2ms 29 Sep 2022 786th Lydxn 🇨🇦 908 45 4ms 22 Jan 2025 787th tsunderu 🇯🇵 908 55 1ms 14 Sep 2021 787th nwellnhof 🇩🇪 908 55 2ms 7 Dec 2021 787th solmyr2000 908 55 1ms 21 Jun 2022 787th 09cf 908 55 4,005ms 13 Oct 2023 787th Herbert00709 🇵🇱 908 55 2ms 29 Sep 2025 792nd DialFrost 🇸🇬 907 34 657ms 29 Aug 2025 792nd edsrzf 🇳🇿 907 34 689ms 4 Sep 2025 792nd CaedenHarper 🇨🇦 907 34 666ms 7 Sep 2025 792nd albanian-laundromat 907 34 651ms 12 Sep 2025 792nd sean-niemann 🇺🇸 907 34 666ms 12 Sep 2025 792nd fuzzylojik-golf 🇺🇸 907 34 645ms 22 Sep 2025 792nd xsot 🇸🇬 907 34 680ms 15 Nov 2025 792nd Yewzir 🇧🇪 907 34 662ms 15 Nov 2025 792nd pardouin 🇫🇷 907 34 691ms 20 days ago First Prev 721–800 of 5,347 Next Last