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 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 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 Calendar 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 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 1st JayXon 🇺🇸 1,000 62 412ms 13 Jun 2023 1st Lydxn 🇨🇦 1,000 62 506ms 1 Jul 2023 1st AdrienHache 🇫🇷 1,000 62 387ms 22 days ago 4th stefangimmillaro 984 63 430ms 12 Jun 2023 4th namelessiw 984 63 426ms 9 Aug 2024 4th fuzzylojik-golf 🇺🇸 984 63 369ms 31 Jul 2025 7th nwellnhof 🇩🇪 969 64 423ms 21 Dec 2021 7th btnlq 969 64 471ms 10 Mar 2023 7th MeWhenI 🇻🇦 969 64 407ms 26 Jul 2023 7th sean-niemann 🇺🇸 969 64 404ms 23 Dec 2024 7th WalrusesAreAwesome 969 64 405ms 11 Jan 2025 7th prplz 🇦🇺 969 64 423ms 23 Jan 2025 7th Yax42 🇫🇷 969 64 419ms 1 Aug 2025 7th KasperKivimaeki 🇫🇮 969 64 466ms 23 days ago 7th amazingalek 969 64 372ms 16 days ago 16th Attero 🇸🇪 954 65 377ms 21 Nov 2021 16th billings7 🇬🇧 954 65 374ms 21 Nov 2021 16th KatieLG 🇬🇧 954 65 383ms 21 Nov 2021 16th primo-ppcg 🇹🇭 954 65 391ms 21 Nov 2021 16th tomtheisen 🇺🇸 954 65 431ms 21 Nov 2021 16th roavin 954 65 402ms 29 Jun 2022 16th annaproxy 954 65 417ms 19 May 2023 16th b-illy 🇬🇧 954 65 384ms 21 Jan 2025 16th albanian-laundromat 954 65 473ms 22 days ago 16th DialFrost 🇸🇬 954 65 339ms 14 days ago 26th ScottHamper 939 66 394ms 21 Nov 2021 26th Shanethegamer 🇺🇸 939 66 402ms 28 Dec 2021 26th Yewzir 🇧🇪 939 66 365ms 8 May 2023 26th janbehrens 🇩🇪 939 66 408ms 27 Nov 2023 26th SirBogman 🇺🇸 939 66 386ms 3 Jan 2024 31st KrausRaus 🇺🇸 912 68 389ms 26 Jun 2023 32nd Gaddy 🇫🇷 899 69 433ms 1 Jun 2022 32nd postie77 899 69 393ms 18 Apr 2023 34th Irratix 🇳🇱 886 70 418ms 13 Dec 2021 34th Ripick 886 70 407ms 18 Jul 2022 34th CatsAreFluffy 886 70 433ms 28 Nov 2022 37th sultan 873 71 380ms 2 Apr 2024 38th tkr-sh 🇰🇵 861 72 380ms 4 May 2022 38th ChrisTheisen 861 72 398ms 19 Dec 2022 38th mathb0y512 861 72 386ms 8 Feb 2023 41st LS2021 849 73 392ms 24 Nov 2023 41st dokutan 849 73 413ms 14 Jul 2025 43rd Meowsan91 🇨🇿 827 75 397ms 21 Nov 2021 43rd SmartK8 🇨🇿 827 75 395ms 13 Nov 2022 45th pan4ever 816 76 432ms 21 Nov 2021 45th hamhub7 816 76 388ms 26 Aug 2022 45th Matgc04 816 76 385ms 23 Feb 2024 45th Squimbletin 816 76 399ms 22 Apr 2025 45th mwarvik 🇳🇴 816 76 377ms 9 days ago 50th CarsonChr 🇺🇸 795 78 396ms 7 Apr 2024 51st hyvyys 785 79 400ms 21 Nov 2021 52nd aliakseikalosha 775 80 372ms 21 Nov 2021 52nd oren0 775 80 397ms 21 Nov 2021 52nd adlerzei 775 80 436ms 5 May 2022 52nd arctouch-sergeymetlov 775 80 391ms 21 Jun 2023 52nd ElysiaVesper 775 80 394ms 19 Nov 2023 52nd Re-Adventures 🇮🇳 775 80 396ms 15 Apr 2025 58th tdkkdt 🇷🇺 765 81 383ms 21 Nov 2021 58th tomh1012 765 81 396ms 21 Nov 2021 58th MLPdiscord 765 81 391ms 10 Jan 2022 58th josephdwalker 765 81 375ms 14 Nov 2023 62nd ILMTitan 756 82 413ms 21 Nov 2021 62nd Romain-1 🇫🇷 756 82 425ms 1 Jun 2022 62nd arctouch-cristiannevianna 756 82 407ms 23 May 2023 62nd kkoenig 756 82 412ms 25 Dec 2023 62nd FreyLuis 756 82 432ms 17 Jan 2024 62nd michelebastione 🇮🇹 756 82 424ms 27 Aug 2025 68th castur1 747 83 444ms 3 Feb 2022 69th JDiLenarda 🇫🇷 738 84 401ms 21 Nov 2021 69th najs91 738 84 399ms 21 Nov 2021 69th bac0id 738 84 402ms 22 Sep 2023 69th epic-programmer-guy 738 84 416ms 19 Dec 2023 69th QzLP2P 738 84 417ms 29 Mar 2024 69th malworthy 738 84 422ms 16 Aug 2024 69th arcpolaris 738 84 425ms 27 Mar 2025 76th leth4 729 85 404ms 5 Jul 2023 76th CaedenHarper 🇨🇦 729 85 397ms 17 Oct 2025 76th Adix-null 🇱🇹 729 85 464ms 10 Nov 2025 79th ericlangedijk 🇸🇮 721 86 424ms 16 Mar 2022 79th Betuaredead 721 86 373ms 4 Jan 2023 1–80 of 145 Next Last