The Calendar hole will go live in approximately 5 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 476th sean-niemann 🇺🇸 933 38 345ms 17 Jan 2024 476th JayXon 🇺🇸 933 38 404ms 18 Jan 2024 476th m-tkach 🇺🇦 933 38 440ms 21 Jan 2024 476th rucin93 🇵🇱 933 38 362ms 21 Jan 2024 476th GrayJoKing 🇦🇺 933 38 373ms 22 Jan 2024 476th xsot 🇸🇬 933 38 368ms 29 Jan 2024 476th Yewzir 🇧🇪 933 38 377ms 4 Feb 2024 476th lynn 933 38 417ms 17 Feb 2024 476th pardouin 🇫🇷 933 38 355ms 21 Jun 2024 476th b-illy 🇬🇧 933 38 355ms 7 Sep 2024 476th kg583 🇺🇸 933 38 358ms 16 Oct 2024 476th fuzzylojik-golf 🇺🇸 933 38 349ms 2 Jul 2025 476th CaedenHarper 🇨🇦 933 38 373ms 28 Aug 2025 476th Babafaba 933 38 362ms 5 Nov 2025 495th Lydxn 🇨🇦 931 28 72ms 12 Dec 2022 495th sisyphus-ppcg 🇦🇺 931 28 80ms 12 Dec 2022 495th ovs-code 🇩🇪 931 28 76ms 12 Dec 2022 495th Alessandro-Balconi 🇮🇹 931 28 73ms 26 Dec 2022 495th Steffan153 🇫🇮 931 28 78ms 17 Aug 2024 495th sean-niemann 🇺🇸 931 28 69ms 20 Jan 2025 495th DialFrost 🇸🇬 931 28 69ms 19 Feb 2025 502nd primo-ppcg 🇹🇭 931 31 929ms 24 Mar 2021 502nd Lydxn 🇨🇦 931 31 952ms 12 Jul 2021 502nd JayXon 🇺🇸 931 31 928ms 22 Dec 2021 502nd pardouin 🇫🇷 931 31 935ms 8 Aug 2025 502nd fuzzylojik-golf 🇺🇸 931 31 987ms 21 Aug 2025 507th tom-lord 931 32 47ms 8 Nov 2017 507th vonagam 931 32 53ms 8 Nov 2017 507th jaredcrystal 🇺🇸 931 32 43ms 27 Sep 2018 507th handisb 931 32 47ms 12 Sep 2019 507th n1LS 931 32 47ms 27 Sep 2019 507th SirBogman 🇺🇸 931 32 41ms 29 Nov 2019 507th flavono123 931 32 43ms 14 May 2020 507th antimon2 🇯🇵 931 32 44ms 29 Jun 2020 507th hiddicop 🇸🇪 931 32 41ms 29 Jan 2021 507th NewDefectus 🇮🇱 931 32 42ms 4 Feb 2021 507th anter69 🇭🇺 931 32 47ms 20 Feb 2021 507th prplz 🇦🇺 931 32 44ms 4 May 2021 507th Natanaelel 🇸🇪 931 32 46ms 7 May 2021 507th awnion 931 32 43ms 16 May 2021 507th UladzimirSukharukau 931 32 43ms 13 Sep 2021 507th MeWhenI 🇻🇦 931 32 35ms 4 Nov 2021 507th emgordon154 931 32 51ms 6 Dec 2021 507th akshatj27 🇦🇶 931 32 46ms 28 Dec 2021 507th nwellnhof 🇩🇪 931 32 57ms 14 Jan 2022 507th jmerle 🇳🇱 931 32 39ms 21 Jan 2022 507th Irratix 🇳🇱 931 32 36ms 15 Feb 2022 507th hrrs01 931 32 42ms 23 Feb 2022 507th janbehrens 🇩🇪 931 32 43ms 30 May 2022 507th 4hg 🇺🇸 931 32 46ms 11 Jul 2022 507th jared-hughes 931 32 36ms 10 Sep 2022 507th aksyristos 931 32 50ms 29 Jan 2023 507th fynnkroeger 931 32 42ms 15 Apr 2023 507th olleicua 🇺🇸 931 32 43ms 6 Jan 2024 507th wlaud9 931 32 43ms 6 Feb 2024 507th TFeld00 🇩🇰 931 32 46ms 3 Sep 2024 507th tatzyr 🇯🇵 931 32 48ms 17 Nov 2024 507th error256 931 32 42ms 12 Apr 2025 507th Lv0Sys 🇵🇱 931 32 37ms 3 Jun 2025 507th ejini6969 931 32 47ms 14 Jun 2025 507th csharpython 931 32 43ms 24 Jul 2025 507th vishal-mohanty 931 32 38ms 24 Aug 2025 507th snoozingnewt 🇨🇦 931 32 107ms 28 Sep 2025 507th blaztoma 🇱🇹 931 32 40ms 12 Oct 2025 545th stefangimmillaro 930 63 358ms 12 Jun 2023 545th namelessiw 930 63 370ms 9 Aug 2024 545th fuzzylojik-golf 🇺🇸 930 63 384ms 31 Jul 2025 548th JayXon 🇺🇸 929 92 287ms 29 Jan 2021 548th prplz 🇦🇺 929 92 269ms 11 Feb 2021 548th Lydxn 🇨🇦 929 92 312ms 24 Sep 2021 548th MeWhenI 🇻🇦 929 92 278ms 4 Nov 2021 548th Shanethegamer 🇺🇸 929 92 266ms 28 Dec 2021 548th nwellnhof 🇩🇪 929 92 273ms 28 Dec 2021 548th Steffan153 🇫🇮 929 92 275ms 17 Dec 2022 548th stefangimmillaro 929 92 267ms 12 Jun 2023 548th sean-niemann 🇺🇸 929 92 266ms 30 Aug 2023 548th Yewzir 🇧🇪 929 92 278ms 25 Oct 2023 548th Betuaredead 929 92 330ms 12 Nov 2023 548th edsrzf 🇳🇿 929 92 269ms 1 Nov 2024 548th emgordon154 929 92 262ms 17 Jan 2025 First Prev 481–560 of 5,352 Next Last