The Calendar hole will go live in approximately 2 hours. 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 ArkScript 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 ArkScript 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 478th sisyphus-ppcg 🇦🇺 933 38 428ms 16 Jan 2024 478th DialFrost 🇸🇬 933 38 355ms 16 Jan 2024 478th sean-niemann 🇺🇸 933 38 422ms 17 Jan 2024 478th JayXon 🇺🇸 933 38 432ms 18 Jan 2024 478th m-tkach 🇺🇦 933 38 442ms 21 Jan 2024 478th rucin93 🇵🇱 933 38 391ms 21 Jan 2024 478th GrayJoKing 🇦🇺 933 38 370ms 22 Jan 2024 478th xsot 🇸🇬 933 38 438ms 29 Jan 2024 478th Yewzir 🇧🇪 933 38 436ms 4 Feb 2024 478th lynn 933 38 489ms 17 Feb 2024 478th pardouin 🇫🇷 933 38 395ms 21 Jun 2024 478th b-illy 🇬🇧 933 38 403ms 7 Sep 2024 478th kg583 🇺🇸 933 38 438ms 16 Oct 2024 478th fuzzylojik-golf 🇺🇸 933 38 406ms 2 Jul 2025 478th CaedenHarper 🇨🇦 933 38 469ms 28 Aug 2025 478th Babafaba 933 38 686ms 5 Nov 2025 497th primo-ppcg 🇹🇭 932 31 929ms 24 Mar 2021 497th Lydxn 🇨🇦 932 31 952ms 12 Jul 2021 497th JayXon 🇺🇸 932 31 928ms 22 Dec 2021 497th pardouin 🇫🇷 932 31 935ms 8 Aug 2025 497th fuzzylojik-golf 🇺🇸 932 31 987ms 21 Aug 2025 502nd Lydxn 🇨🇦 931 28 72ms 12 Dec 2022 502nd sisyphus-ppcg 🇦🇺 931 28 80ms 12 Dec 2022 502nd ovs-code 🇩🇪 931 28 76ms 12 Dec 2022 502nd Alessandro-Balconi 🇮🇹 931 28 73ms 26 Dec 2022 502nd Steffan153 🇫🇮 931 28 78ms 17 Aug 2024 502nd sean-niemann 🇺🇸 931 28 69ms 20 Jan 2025 502nd DialFrost 🇸🇬 931 28 69ms 19 Feb 2025 509th tom-lord 931 32 40ms 8 Nov 2017 509th vonagam 931 32 42ms 8 Nov 2017 509th jaredcrystal 🇺🇸 931 32 43ms 27 Sep 2018 509th handisb 931 32 41ms 12 Sep 2019 509th n1LS 931 32 39ms 27 Sep 2019 509th SirBogman 🇺🇸 931 32 41ms 29 Nov 2019 509th flavono123 931 32 43ms 14 May 2020 509th antimon2 🇯🇵 931 32 42ms 29 Jun 2020 509th hiddicop 🇸🇪 931 32 40ms 29 Jan 2021 509th NewDefectus 🇮🇱 931 32 39ms 4 Feb 2021 509th anter69 🇭🇺 931 32 42ms 20 Feb 2021 509th prplz 🇦🇺 931 32 41ms 4 May 2021 509th Natanaelel 🇸🇪 931 32 43ms 7 May 2021 509th awnion 931 32 43ms 16 May 2021 509th UladzimirSukharukau 931 32 41ms 13 Sep 2021 509th MeWhenI 🇻🇦 931 32 35ms 4 Nov 2021 509th emgordon154 931 32 42ms 6 Dec 2021 509th akshatj27 🇦🇶 931 32 42ms 28 Dec 2021 509th nwellnhof 🇩🇪 931 32 40ms 14 Jan 2022 509th jmerle 🇳🇱 931 32 39ms 21 Jan 2022 509th Irratix 🇳🇱 931 32 36ms 15 Feb 2022 509th hrrs01 931 32 42ms 23 Feb 2022 509th janbehrens 🇩🇪 931 32 41ms 30 May 2022 509th 4hg 🇺🇸 931 32 41ms 11 Jul 2022 509th jared-hughes 931 32 36ms 10 Sep 2022 509th aksyristos 931 32 42ms 29 Jan 2023 509th fynnkroeger 931 32 41ms 15 Apr 2023 509th olleicua 🇺🇸 931 32 43ms 6 Jan 2024 509th wlaud9 931 32 40ms 6 Feb 2024 509th TFeld00 🇩🇰 931 32 43ms 3 Sep 2024 509th tatzyr 🇯🇵 931 32 39ms 17 Nov 2024 509th error256 931 32 41ms 12 Apr 2025 509th Lv0Sys 🇵🇱 931 32 35ms 3 Jun 2025 509th ejini6969 931 32 43ms 14 Jun 2025 509th csharpython 931 32 40ms 24 Jul 2025 509th vishal-mohanty 931 32 38ms 24 Aug 2025 509th snoozingnewt 🇨🇦 931 32 42ms 28 Sep 2025 509th blaztoma 🇱🇹 931 32 40ms 12 Oct 2025 547th stefangimmillaro 930 63 358ms 12 Jun 2023 547th namelessiw 930 63 370ms 9 Aug 2024 547th fuzzylojik-golf 🇺🇸 930 63 384ms 31 Jul 2025 550th JayXon 🇺🇸 929 92 287ms 29 Jan 2021 550th prplz 🇦🇺 929 92 269ms 11 Feb 2021 550th Lydxn 🇨🇦 929 92 312ms 24 Sep 2021 550th MeWhenI 🇻🇦 929 92 278ms 4 Nov 2021 550th Shanethegamer 🇺🇸 929 92 266ms 28 Dec 2021 550th nwellnhof 🇩🇪 929 92 273ms 28 Dec 2021 550th Steffan153 🇫🇮 929 92 275ms 17 Dec 2022 550th stefangimmillaro 929 92 267ms 12 Jun 2023 550th sean-niemann 🇺🇸 929 92 266ms 30 Aug 2023 550th Yewzir 🇧🇪 929 92 278ms 25 Oct 2023 550th Betuaredead 929 92 330ms 12 Nov 2023 First Prev 481–560 of 5,366 Next Last