Prime Numbers in C# in chars. Cheevos Holes Recent Holes Langs Medals Misc 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 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 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 Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 Erlang 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 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 Erlang 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 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 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 Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 1st btnlq 1,000 53 338ms 10 Mar 2023 1st JayXon 🇺🇸 1,000 53 333ms 10 Mar 2023 1st Lydxn 🇨🇦 1,000 53 383ms 19 May 2023 1st AdrienHache 🇫🇷 1,000 53 339ms 20 Jun 2023 1st stefangimmillaro 1,000 53 361ms 15 Jul 2023 1st MeWhenI 🇻🇦 1,000 53 321ms 26 Jul 2023 1st namelessiw 1,000 53 390ms 12 Dec 2023 1st sean-niemann 🇺🇸 1,000 53 350ms 23 Dec 2024 1st Yax42 🇫🇷 1,000 53 400ms 9 Feb 2025 10th ScottHamper 981 54 355ms 21 Nov 2021 10th tomtheisen 🇺🇸 981 54 333ms 21 Nov 2021 12th fuzzylojik-golf 🇺🇸 841 63 380ms 31 Jul 2025 13th nwellnhof 🇩🇪 828 64 342ms 21 Dec 2021 13th WalrusesAreAwesome 828 64 349ms 11 Jan 2025 13th prplz 🇦🇺 828 64 341ms 23 Jan 2025 16th Attero 🇸🇪 815 65 331ms 21 Nov 2021 16th billings7 🇬🇧 815 65 345ms 21 Nov 2021 16th KatieLG 🇬🇧 815 65 358ms 21 Nov 2021 16th primo-ppcg 🇹🇭 815 65 348ms 21 Nov 2021 16th roavin 815 65 368ms 29 Jun 2022 16th annaproxy 815 65 373ms 19 May 2023 16th b-illy 🇬🇧 815 65 325ms 21 Jan 2025 23rd Shanethegamer 🇺🇸 803 66 316ms 28 Dec 2021 23rd Yewzir 🇧🇪 803 66 296ms 8 May 2023 23rd janbehrens 🇩🇪 803 66 276ms 27 Nov 2023 23rd SirBogman 🇺🇸 803 66 330ms 3 Jan 2024 27th SmartK8 🇨🇿 791 67 335ms 10 Oct 2022 28th KrausRaus 🇺🇸 779 68 364ms 26 Jun 2023 29th Gaddy 🇫🇷 768 69 318ms 1 Jun 2022 29th postie77 768 69 322ms 18 Apr 2023 31st Irratix 🇳🇱 757 70 334ms 13 Dec 2021 31st Ripick 757 70 293ms 18 Jul 2022 31st CatsAreFluffy 757 70 341ms 28 Nov 2022 34th sultan 746 71 328ms 2 Apr 2024 35th tkr-sh 🇫🇷 736 72 330ms 4 May 2022 35th ChrisTheisen 736 72 339ms 19 Dec 2022 35th mathb0y512 736 72 349ms 8 Feb 2023 38th LS2021 726 73 388ms 24 Nov 2023 38th dokutan 726 73 322ms 14 Jul 2025 40th Meowsan91 🇨🇿 707 75 342ms 21 Nov 2021 41st pan4ever 697 76 387ms 21 Nov 2021 41st hamhub7 697 76 341ms 26 Aug 2022 41st Matgc04 697 76 336ms 23 Feb 2024 41st Squimbletin 697 76 347ms 22 Apr 2025 45th CarsonChr 🇺🇸 679 78 374ms 7 Apr 2024 46th hyvyys 671 79 332ms 21 Nov 2021 47th aliakseikalosha 663 80 347ms 21 Nov 2021 47th oren0 663 80 307ms 21 Nov 2021 47th adlerzei 663 80 364ms 5 May 2022 47th arctouch-sergeymetlov 663 80 335ms 21 Jun 2023 47th ElysiaVesper 663 80 336ms 19 Nov 2023 47th Re-Adventures 🇮🇳 663 80 381ms 15 Apr 2025 53rd tdkkdt 🇷🇺 654 81 339ms 21 Nov 2021 53rd tomh1012 654 81 345ms 21 Nov 2021 53rd MLPdiscord 654 81 329ms 10 Jan 2022 53rd josephdwalker 654 81 341ms 14 Nov 2023 57th ILMTitan 646 82 368ms 21 Nov 2021 57th Romain-1 🇫🇷 646 82 354ms 1 Jun 2022 57th arctouch-cristiannevianna 646 82 400ms 23 May 2023 57th kkoenig 646 82 374ms 25 Dec 2023 57th FreyLuis 646 82 388ms 17 Jan 2024 57th michelebastione 🇮🇹 646 82 376ms 27 Aug 2025 63rd castur1 639 83 335ms 3 Feb 2022 64th JDiLenarda 🇫🇷 631 84 314ms 21 Nov 2021 64th najs91 631 84 337ms 21 Nov 2021 64th bac0id 631 84 329ms 22 Sep 2023 64th epic-programmer-guy 631 84 369ms 19 Dec 2023 64th QzLP2P 631 84 349ms 29 Mar 2024 64th malworthy 631 84 363ms 16 Aug 2024 64th arcpolaris 631 84 371ms 27 Mar 2025 71st leth4 624 85 317ms 5 Jul 2023 71st CaedenHarper 🇨🇦 624 85 496ms 6 days ago 73rd ericlangedijk 🇸🇮 616 86 343ms 16 Mar 2022 73rd Betuaredead 616 86 332ms 4 Jan 2023 73rd HumanoidCPU 616 86 349ms 1 Apr 2024 1–75 of 140 Next Last