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 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 320th sisyphus-ppcg 🇦🇺 952 28 2ms 4 Apr 2021 320th GrayJoKing 🇦🇺 952 28 2ms 9 Apr 2021 320th HPWiz 🇳🇿 952 28 2ms 9 Apr 2021 320th Lydxn 🇨🇦 952 28 2ms 31 Dec 2021 320th saito-ta 🇯🇵 952 28 2ms 15 May 2022 320th Steffan153 🇫🇮 952 28 2ms 21 Feb 2023 320th AlephSquirrel 952 28 2ms 7 Jun 2023 320th pardouin 🇫🇷 952 28 3ms 20 Aug 2024 320th sean-niemann 🇺🇸 952 28 2ms 21 May 2025 320th xsot 🇸🇬 952 28 3ms 22 Jun 2025 320th fuzzylojik-golf 🇺🇸 952 28 3ms 6 Jul 2025 332nd primo-ppcg 🇹🇭 950 43 11ms 5 Jun 2018 333rd HPWiz 🇳🇿 948 43 115ms 20 May 2018 333rd bforte 948 43 132ms 26 Dec 2018 333rd primo-ppcg 🇹🇭 948 43 115ms 27 Dec 2018 333rd Bubbler-4 948 43 119ms 20 Feb 2019 333rd andersk 🇺🇸 948 43 132ms 24 Mar 2020 333rd GrayJoKing 🇦🇺 948 43 110ms 4 Dec 2020 333rd prplz 🇦🇺 948 43 113ms 4 Dec 2020 333rd sisyphus-ppcg 🇦🇺 948 43 113ms 27 Jan 2021 333rd JayXon 🇺🇸 948 43 115ms 18 Feb 2021 333rd lynn 948 43 113ms 14 Mar 2021 333rd xnor-gate 948 43 116ms 29 Apr 2021 333rd Lydxn 🇨🇦 948 43 112ms 19 Jun 2021 333rd Steffan153 🇫🇮 948 43 112ms 11 Jan 2023 333rd btnlq 948 43 112ms 14 Oct 2023 333rd ovs-code 🇩🇪 948 43 109ms 11 Nov 2023 333rd Yewzir 🇧🇪 948 43 117ms 17 Feb 2024 333rd DialFrost 🇸🇬 948 43 114ms 4 Aug 2024 333rd pardouin 🇫🇷 948 43 124ms 22 Aug 2024 333rd alomiF 948 43 115ms 22 Aug 2024 333rd sean-niemann 🇺🇸 948 43 123ms 29 Dec 2024 333rd Natanaelel 🇸🇪 948 43 116ms 22 Apr 2025 333rd YAJUE114514 948 43 118ms 15 Aug 2025 333rd fuzzylojik-golf 🇺🇸 948 43 110ms 27 Aug 2025 333rd albanian-laundromat 948 43 115ms 4 Oct 2025 333rd iczelia 🇩🇪 948 43 113ms 19 Oct 2025 358th JayXon 🇺🇸 947 70 335ms 24 Sep 2025 358th nwellnhof 🇩🇪 947 70 437ms 25 Sep 2025 358th DialFrost 🇸🇬 947 70 315ms 13 Nov 2025 358th KasperKivimaeki 🇫🇮 947 70 398ms 17 days ago 358th Lydxn 🇨🇦 947 70 344ms 5 days ago 363rd GrayJoKing 🇦🇺 945 21 2ms 28 Dec 2020 363rd HPWiz 🇳🇿 945 21 2ms 7 Feb 2022 363rd Lydxn 🇨🇦 945 21 2ms 4 Aug 2023 363rd MeWhenI 🇻🇦 945 21 2ms 15 Feb 2025 367th nwellnhof 🇩🇪 945 37 9ms 31 Oct 2021 367th jansekulowicz 945 37 9ms 14 May 2022 367th AlephSquirrel 945 37 9ms 18 Jul 2022 367th stefangimmillaro 945 37 9ms 18 Nov 2023 367th Just4FunCoder 945 37 9ms 18 Feb 2024 367th Yewzir 🇧🇪 945 37 9ms 9 Jun 2024 367th SirBogman 🇺🇸 945 37 9ms 12 Aug 2025 367th CaedenHarper 🇨🇦 945 37 9ms 18 Aug 2025 375th primo-ppcg 🇹🇭 945 41 1ms 17 Dec 2018 375th Waffle3z 945 41 1ms 18 Oct 2020 375th DaDerpDuck 945 41 1ms 22 Jan 2021 375th sisyphus-ppcg 🇦🇺 945 41 1ms 7 Apr 2021 375th Lydxn 🇨🇦 945 41 1ms 12 Jul 2021 375th JayXon 🇺🇸 945 41 1ms 12 Jul 2021 375th GrayJoKing 🇦🇺 945 41 1ms 8 Apr 2022 375th jared-hughes 945 41 2ms 6 Jul 2022 375th btnlq 945 41 1ms 25 Dec 2022 375th MeWhenI 🇻🇦 945 41 1ms 31 Dec 2022 375th Steffan153 🇫🇮 945 41 2ms 21 Feb 2023 375th jacobly0 🇺🇸 945 41 2ms 10 Sep 2023 375th xsot 🇸🇬 945 41 1ms 10 Oct 2023 375th lynn 945 41 1ms 23 Jun 2024 375th pardouin 🇫🇷 945 41 1ms 5 Oct 2024 375th koipondx86 945 41 1ms 5 Nov 2024 375th FlyingPenguin223 945 41 1ms 5 Nov 2024 375th sean-niemann 🇺🇸 945 41 1ms 17 Jan 2025 375th fuzzylojik-golf 🇺🇸 945 41 1ms 6 Jul 2025 375th snoozingnewt 🇨🇦 945 41 1ms 8 days ago 395th JayXon 🇺🇸 945 62 398ms 13 Jun 2023 395th Lydxn 🇨🇦 945 62 344ms 1 Jul 2023 397th Lydxn 🇨🇦 943 30 761ms 6 Feb 2022 397th antimon2 🇯🇵 943 30 624ms 2 Oct 2022 399th GrayJoKing 🇦🇺 942 53 2ms 4 Feb 2022 399th xsot 🇸🇬 942 53 2ms 12 Oct 2023 First Prev 321–400 of 5,345 Next Last