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 720th kritixilithos 897 39 9ms 10 Nov 2018 720th handisb 897 39 9ms 22 Oct 2019 720th alasdair-greenland 897 39 9ms 6 Mar 2020 720th shuding 897 39 9ms 27 Apr 2020 720th BBoehm 🇩🇪 897 39 9ms 27 Oct 2020 720th KrausRaus 🇺🇸 897 39 8ms 31 Dec 2021 720th GeorgeStechman 🇬🇧 897 39 8ms 22 Sep 2022 720th Nicronmil 897 39 9ms 1 Nov 2022 720th fourth-bit 897 39 9ms 12 Nov 2022 720th Shanethegamer 🇺🇸 897 39 9ms 29 Mar 2023 720th janbehrens 🇩🇪 897 39 9ms 1 Jan 2024 720th eranws 897 39 8ms 2 Jan 2024 720th dylanarmstrong 897 39 9ms 2 Jan 2024 720th trinityy-7 897 39 9ms 6 Feb 2024 720th emgordon154 897 39 9ms 18 Jul 2024 720th RobertHoeh 897 39 9ms 10 Sep 2025 720th Babafaba 897 39 9ms 15 Oct 2025 738th btnlq 897 40 3ms 4 Nov 2022 738th xsot 🇸🇬 897 40 2ms 13 Jul 2023 738th fuzzylojik-golf 🇺🇸 897 40 2ms 7 Aug 2025 741st Lydxn 🇨🇦 897 66 27ms 28 Jan 2023 741st m-tkach 🇺🇦 897 66 27ms 18 Jan 2024 743rd sisyphus-ppcg 🇦🇺 896 55 100ms 14 Oct 2022 743rd Steffan153 🇫🇮 896 55 99ms 7 Jan 2024 745th nwellnhof 🇩🇪 894 70 437ms 25 Sep 2025 745th DialFrost 🇸🇬 894 70 315ms 13 Nov 2025 745th KasperKivimaeki 🇫🇮 894 70 398ms 19 days ago 745th Lydxn 🇨🇦 894 70 344ms 7 days ago 749th primo-ppcg 🇹🇭 893 43 71ms 23 Sep 2022 750th primo-ppcg 🇹🇭 892 30 243ms 15 Jun 2020 750th bstrautin 892 30 262ms 9 Aug 2020 750th nwellnhof 🇩🇪 892 30 243ms 6 Dec 2021 750th sean-niemann 🇺🇸 892 30 241ms 10 Apr 2025 750th DialFrost 🇸🇬 892 30 262ms 11 Apr 2025 755th Lydxn 🇨🇦 892 42 13ms 19 Jul 2022 755th dvargas46 🇺🇸 892 42 24ms 23 Jul 2022 757th pedrotpa 892 44 18ms 1 Jun 2018 757th Mr-Xcoder 892 44 9ms 15 Aug 2018 757th davitf 892 44 9ms 30 Oct 2018 757th Waffle3z 892 44 9ms 18 Oct 2020 757th mizuzimu 892 44 9ms 21 Oct 2020 757th Dazza314 🇬🇧 892 44 9ms 7 Nov 2020 757th dim-an 892 44 9ms 9 Dec 2020 757th btjones0 892 44 9ms 27 Dec 2020 757th JStatnekov 892 44 9ms 9 Jan 2021 757th hiddicop 🇸🇪 892 44 9ms 22 Jan 2021 757th neihousaigaai 892 44 10ms 23 Apr 2021 757th gilufin 892 44 9ms 23 May 2021 757th bissectra 892 44 9ms 15 Jul 2021 757th mokymok 🇺🇸 892 44 9ms 21 Jul 2021 757th madex 🇩🇪 892 44 9ms 22 Aug 2021 757th hiichbindermax 892 44 9ms 23 Oct 2021 757th 20k1 892 44 10ms 23 Oct 2021 757th ZakkkkAttackkkk 🇵🇭 892 44 12ms 20 Dec 2021 757th tomaxent 892 44 9ms 16 Jan 2022 757th Bombergames 892 44 9ms 20 Jan 2022 757th Bonjour27891 🇻🇳 892 44 11ms 10 Feb 2022 757th aryavsaigal 892 44 9ms 28 Feb 2022 757th CedricGebistorf 892 44 9ms 12 Mar 2022 757th LHuitre 892 44 11ms 1 May 2022 757th tkr-sh 🇰🇵 892 44 10ms 12 May 2022 757th doppelar0n 🇩🇪 892 44 9ms 23 Aug 2022 757th Mikey-Beep 🇬🇧 892 44 10ms 26 Sep 2022 757th aksyristos 892 44 9ms 25 Oct 2022 757th OhmNomNom 892 44 9ms 30 Oct 2022 757th M0PKOBKA 892 44 10ms 22 Dec 2022 757th StefanHabel 🇨🇦 892 44 9ms 25 Dec 2022 757th nayakrujul 892 44 9ms 3 Jan 2023 757th firegene 🇮🇪 892 44 9ms 4 Jan 2023 757th oceko 892 44 9ms 24 Mar 2023 757th InigoK 🇺🇸 892 44 9ms 1 Apr 2023 757th dtaylor0 892 44 11ms 28 Apr 2023 757th MatheweB 892 44 9ms 11 May 2023 757th TheoKeller1 892 44 9ms 11 Jun 2023 757th fkantelberg 892 44 10ms 8 Aug 2023 757th jacobly0 🇺🇸 892 44 9ms 10 Sep 2023 757th Shanethegamer 🇺🇸 892 44 9ms 13 Sep 2023 757th htareque 892 44 9ms 6 Oct 2023 757th davecame 892 44 9ms 20 Oct 2023 757th mikehanus 892 44 9ms 21 Nov 2023 First Prev 721–800 of 5,321 Next Last
