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 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 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 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 Lily 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 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 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 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 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 160th zx5b 684 76 2ms 11 Dec 2020 160th starxingchenc 684 76 2ms 31 May 2021 160th HumanoidCPU 684 76 1ms 24 Feb 2024 164th meientau 675 77 1ms 11 May 2019 164th osmith93 675 77 1ms 7 Dec 2019 164th MaxElf999 675 77 1ms 12 Dec 2022 164th matricronia 675 77 2ms 11 days ago 164th bpharaldsson 675 77 2ms 4 hours ago 169th mickmurci 667 78 2ms 30 Dec 2024 170th AforAmpere 658 79 1ms 15 Jun 2020 170th ACMichels 658 79 1ms 14 Aug 2021 170th narad-muni 🇮🇳 658 79 1ms 6 May 2022 170th NickTheEASDude 🇺🇸 658 79 1ms 27 Feb 2024 170th isaiah0311 🇺🇸 658 79 2ms 18 days ago 175th loooph 650 80 1ms 2 Aug 2020 175th agrukuki 650 80 1ms 2 Oct 2020 175th tomh1012 650 80 2ms 10 Nov 2020 175th AaronHe7 650 80 1ms 21 Nov 2022 175th kasarino 650 80 2ms 11 days ago 180th StHagel 642 81 2ms 18 Aug 2020 180th mloumeau 642 81 2ms 19 Jan 2021 180th alexvitkov 642 81 1ms 5 Aug 2022 180th xnacly 🇩🇪 642 81 1ms 6 Jul 2023 180th mikiymk 642 81 1ms 21 Sep 2023 185th jhunterkohler 634 82 1ms 19 May 2021 185th jgbaldwinbrown 634 82 1ms 1 Sep 2021 185th BruceMcRooster 634 82 1ms 24 Mar 2022 185th Jaro32768 🇸🇰 634 82 4ms 8 Feb 2024 185th trinityy-7 634 82 2ms 6 Mar 2024 190th funkkiy 🇧🇷 627 83 1ms 13 Sep 2023 190th Us1ngTh3Hub 627 83 2ms 2 Apr 2024 190th LHLaurini 🇧🇷 627 83 1ms 1 May 2024 190th elttil 627 83 2ms 15 Jun 2024 190th rifatx 627 83 1ms 16 Jul 2024 195th generot 🇧🇬 619 84 1ms 3 Jul 2020 195th resetcentral 619 84 2ms 21 May 2022 195th Mabeloid 🇳🇴 619 84 2ms 21 Oct 2025 198th Waterperry 612 85 2ms 2 Nov 2021 199th aubergine-sauce 605 86 1ms 20 Sep 2023 200th chunky 598 87 1ms 2 Oct 2020 200th Evoniuk 598 87 1ms 31 May 2021 200th AIn0n 598 87 2ms 22 Aug 2021 200th Adrien-AM 598 87 1ms 26 Dec 2021 200th Haksell 🇦🇶 598 87 1ms 28 Feb 2023 200th acotis 598 87 1ms 19 Feb 2025 206th jngbsn 591 88 1ms 2 Mar 2019 206th TornadoCookie 591 88 2ms 17 Oct 2022 208th godraadam 584 89 2ms 16 Nov 2020 208th kallmi28 🇨🇿 584 89 2ms 10 Oct 2023 208th ehulinsky 🇺🇸 584 89 1ms 18 Feb 2024 208th 0dyse 584 89 1ms 6 May 2025 208th SirObby 🇫🇮 584 89 2ms 18 Oct 2025 213th heypwesto 🇳🇿 578 90 1ms 12 Apr 2021 213th Pyro569 578 90 1ms 28 Jul 2023 215th ytaki0801 🇯🇵 571 91 2ms 21 Jun 2021 215th james-downey 571 91 2ms 10 Jul 2022 217th mamalakic 565 92 1ms 2 Mar 2023 217th Andrey2001 565 92 2ms 15 days ago 219th archee303 553 94 2ms 4 Feb 2020 219th msbranicky 553 94 2ms 22 Aug 2023 219th BpbjsGreen 🇨🇳 553 94 2ms 7 Jul 2024 219th aDwarfNamedUrist 553 94 1ms 11 Sep 2024 223rd nwdamgaard 547 95 2ms 19 Dec 2021 224th rachelambda 542 96 3ms 7 Jun 2020 224th trist224 🇫🇷 542 96 1ms 28 Nov 2022 226th olivermrose 🇺🇸 536 97 2ms 30 Sep 2021 227th ldoodle 531 98 1ms 25 Aug 2022 227th NeatCrown 🇨🇦 531 98 1ms 14 Dec 2022 229th pdewilde 525 99 2ms 18 Oct 2019 229th shibacho 🇯🇵 525 99 1ms 29 Mar 2022 231st veehz 520 100 1ms 21 Feb 2023 231st Giantnoodlemonster 520 100 2ms 2 Nov 2024 233rd Indivicivet 515 101 2ms 15 Mar 2021 233rd cnelson20 515 101 2ms 8 Aug 2022 235th drkameleon 🇪🇸 510 102 1ms 28 Jan 2020 235th hyvyys 510 102 1ms 21 Sep 2020 235th bbb651 🇮🇱 510 102 2ms 25 Nov 2020 238th Sephirem98 500 104 2ms 26 Oct 2023 239th BuoyantPigeon 495 105 1ms 10 Aug 2019 239th adoxography 495 105 1ms 10 Oct 2019 First Prev 161–240 of 288 Next Last