Prime Numbers in C# 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers 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 ><> ALGOL 68 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 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 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 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers 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 1st JayXon 🇺🇸 1,000 62 411ms 13 Jun 2023 1st Lydxn 🇨🇦 1,000 62 439ms 1 Jul 2023 1st AdrienHache 🇫🇷 1,000 62 500ms 24 Dec 2025 4th stefangimmillaro 984 63 394ms 12 Jun 2023 4th namelessiw 984 63 402ms 9 Aug 2024 4th fuzzylojik-golf 🇺🇸 984 63 539ms 31 Jul 2025 7th nwellnhof 🇩🇪 969 64 378ms 21 Dec 2021 7th btnlq 969 64 431ms 10 Mar 2023 7th MeWhenI 🇻🇦 969 64 391ms 26 Jul 2023 7th sean-niemann 🇺🇸 969 64 387ms 23 Dec 2024 7th WalrusesAreAwesome 969 64 435ms 11 Jan 2025 7th prplz 🇦🇺 969 64 413ms 23 Jan 2025 7th Yax42 🇫🇷 969 64 416ms 1 Aug 2025 7th KasperKivimaeki 🇫🇮 969 64 408ms 22 Dec 2025 7th amazingalek 🇳🇴 969 64 498ms 29 Dec 2025 16th Attero 🇸🇪 954 65 373ms 21 Nov 2021 16th billings7 🇬🇧 954 65 373ms 21 Nov 2021 16th KatieLG 🇬🇧 954 65 360ms 21 Nov 2021 16th primo-ppcg 🇹🇭 954 65 377ms 21 Nov 2021 16th tomtheisen 🇺🇸 954 65 391ms 21 Nov 2021 16th roavin 954 65 375ms 29 Jun 2022 16th annaproxy 954 65 402ms 19 May 2023 16th b-illy 🇬🇧 954 65 497ms 21 Jan 2025 16th albanian-laundromat 954 65 423ms 24 Dec 2025 16th DialFrost 🇸🇬 954 65 509ms 31 Dec 2025 26th ScottHamper 939 66 378ms 21 Nov 2021 26th Shanethegamer 🇺🇸 939 66 362ms 28 Dec 2021 26th Yewzir 🇧🇪 939 66 404ms 8 May 2023 26th janbehrens 🇩🇪 939 66 365ms 27 Nov 2023 26th SirBogman 🇺🇸 939 66 357ms 3 Jan 2024 31st KrausRaus 🇺🇸 912 68 393ms 26 Jun 2023 32nd Gaddy 🇫🇷 899 69 381ms 1 Jun 2022 32nd postie77 899 69 364ms 18 Apr 2023 34th Irratix 🇳🇱 886 70 354ms 13 Dec 2021 34th Ripick 886 70 375ms 18 Jul 2022 34th CatsAreFluffy 886 70 381ms 28 Nov 2022 37th sultan 873 71 401ms 2 Apr 2024 38th tkr-sh 🇰🇵 861 72 341ms 4 May 2022 38th ChrisTheisen 861 72 398ms 19 Dec 2022 38th mathb0y512 861 72 390ms 8 Feb 2023 41st LS2021 849 73 373ms 24 Nov 2023 41st dokutan 849 73 364ms 14 Jul 2025 43rd Meowsan91 🇨🇿 827 75 401ms 21 Nov 2021 43rd SmartK8 🇨🇿 827 75 344ms 13 Nov 2022 45th pan4ever 816 76 382ms 21 Nov 2021 45th hamhub7 816 76 374ms 26 Aug 2022 45th Matgc04 816 76 376ms 23 Feb 2024 45th Squimbletin 816 76 368ms 22 Apr 2025 45th mwarvik 🇳🇴 816 76 503ms 5 Jan 2026 50th CarsonChr 🇺🇸 795 78 378ms 7 Apr 2024 51st hyvyys 785 79 371ms 21 Nov 2021 52nd aliakseikalosha 775 80 506ms 21 Nov 2021 52nd oren0 775 80 369ms 21 Nov 2021 52nd adlerzei 775 80 428ms 5 May 2022 52nd arctouch-sergeymetlov 775 80 385ms 21 Jun 2023 52nd ElysiaVesper 775 80 373ms 19 Nov 2023 52nd Re-Adventures 🇮🇳 775 80 403ms 15 Apr 2025 52nd bpharaldsson 775 80 446ms 29 Jan 2026 59th tdkkdt 🇷🇺 765 81 389ms 21 Nov 2021 59th tomh1012 765 81 402ms 21 Nov 2021 59th MLPdiscord 765 81 396ms 10 Jan 2022 59th josephdwalker 765 81 350ms 14 Nov 2023 63rd ILMTitan 756 82 408ms 21 Nov 2021 63rd Romain-1 🇫🇷 756 82 386ms 1 Jun 2022 63rd arctouch-cristiannevianna 756 82 404ms 23 May 2023 63rd kkoenig 756 82 359ms 25 Dec 2023 63rd FreyLuis 756 82 412ms 17 Jan 2024 63rd michelebastione 🇮🇹 756 82 366ms 27 Aug 2025 69th castur1 747 83 462ms 3 Feb 2022 70th JDiLenarda 🇫🇷 738 84 356ms 21 Nov 2021 70th najs91 738 84 364ms 21 Nov 2021 70th bac0id 738 84 449ms 22 Sep 2023 70th epic-programmer-guy 738 84 382ms 19 Dec 2023 70th QzLP2P 738 84 367ms 29 Mar 2024 70th malworthy 738 84 400ms 16 Aug 2024 70th arcpolaris 738 84 408ms 27 Mar 2025 77th leth4 729 85 417ms 5 Jul 2023 77th CaedenHarper 🇨🇦 729 85 390ms 17 Oct 2025 77th Adix-null 🇱🇹 729 85 395ms 10 Nov 2025 80th ericlangedijk 🇸🇮 721 86 378ms 16 Mar 2022 1–80 of 147 Next Last