Prime Numbers in C 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 149th boxjelly 689 74 1ms 16 Feb 2021 149th pandapawskat 689 74 1ms 2 Sep 2021 149th iakolzin 689 74 2ms 29 May 2022 149th ansgustjd 689 74 2ms 16 May 2023 149th YoranDS 689 74 1ms 29 May 2023 156th g3rrit 680 75 172ms 3 Aug 2020 156th DavidePrea 680 75 1ms 16 Jun 2022 156th Seek64 🇩🇪 680 75 1ms 15 Nov 2022 156th isaiah0311 680 75 2ms 16 Feb 2023 156th weliveinhell 🇭🇹 680 75 1ms 14 Oct 2023 161st AkashTandon167 671 76 1ms 1 Dec 2019 161st zx5b 671 76 2ms 11 Dec 2020 161st starxingchenc 671 76 2ms 31 May 2021 161st HumanoidCPU 671 76 1ms 24 Feb 2024 165th meientau 662 77 1ms 11 May 2019 165th osmith93 662 77 1ms 7 Dec 2019 165th MaxElf999 662 77 1ms 12 Dec 2022 168th mickmurci 654 78 2ms 30 Dec 2024 169th AforAmpere 646 79 1ms 15 Jun 2020 169th ACMichels 646 79 1ms 14 Aug 2021 169th narad-muni 🇮🇳 646 79 1ms 6 May 2022 169th NickTheEASDude 🇺🇸 646 79 1ms 27 Feb 2024 173rd loooph 638 80 1ms 2 Aug 2020 173rd agrukuki 638 80 1ms 2 Oct 2020 173rd tomh1012 638 80 2ms 10 Nov 2020 173rd AaronHe7 638 80 1ms 21 Nov 2022 177th StHagel 630 81 2ms 18 Aug 2020 177th mloumeau 630 81 2ms 19 Jan 2021 177th alexvitkov 630 81 1ms 5 Aug 2022 177th xnacly 🇩🇪 630 81 1ms 6 Jul 2023 177th mikiymk 630 81 1ms 21 Sep 2023 182nd jhunterkohler 622 82 1ms 19 May 2021 182nd jgbaldwinbrown 622 82 1ms 1 Sep 2021 182nd BruceMcRooster 622 82 1ms 24 Mar 2022 182nd Jaro32768 🇸🇰 622 82 4ms 8 Feb 2024 182nd trinityy-7 622 82 2ms 6 Mar 2024 187th funkkiy 🇧🇷 614 83 1ms 13 Sep 2023 187th Us1ngTh3Hub 614 83 2ms 2 Apr 2024 187th LHLaurini 🇧🇷 614 83 1ms 1 May 2024 187th elttil 614 83 2ms 15 Jun 2024 187th rifatx 614 83 1ms 16 Jul 2024 192nd generot 🇧🇬 607 84 1ms 3 Jul 2020 192nd resetcentral 607 84 2ms 21 May 2022 192nd Mabeloid 🇳🇴 607 84 2ms 21 Oct 2025 195th Waterperry 600 85 2ms 2 Nov 2021 196th aubergine-sauce 593 86 1ms 20 Sep 2023 197th chunky 586 87 1ms 2 Oct 2020 197th Evoniuk 586 87 1ms 31 May 2021 197th AIn0n 586 87 2ms 22 Aug 2021 197th Adrien-AM 586 87 1ms 26 Dec 2021 197th Haksell 🇦🇶 586 87 1ms 28 Feb 2023 197th acotis 586 87 1ms 19 Feb 2025 203rd jngbsn 580 88 1ms 2 Mar 2019 203rd TornadoCookie 580 88 2ms 17 Oct 2022 205th godraadam 573 89 2ms 16 Nov 2020 205th kallmi28 🇨🇿 573 89 2ms 10 Oct 2023 205th ehulinsky 🇺🇸 573 89 1ms 18 Feb 2024 205th 0dyse 573 89 1ms 6 May 2025 205th SirObby 🇫🇮 573 89 2ms 18 Oct 2025 210th heypwesto 🇳🇿 567 90 1ms 12 Apr 2021 210th Pyro569 567 90 1ms 28 Jul 2023 212th ytaki0801 🇯🇵 560 91 2ms 21 Jun 2021 212th james-downey 560 91 2ms 10 Jul 2022 214th mamalakic 554 92 1ms 2 Mar 2023 215th archee303 543 94 2ms 4 Feb 2020 215th msbranicky 543 94 2ms 22 Aug 2023 215th BpbjsGreen 🇨🇳 543 94 2ms 7 Jul 2024 215th aDwarfNamedUrist 543 94 1ms 11 Sep 2024 219th nwdamgaard 537 95 2ms 19 Dec 2021 220th rachelambda 531 96 3ms 7 Jun 2020 220th trist224 🇫🇷 531 96 1ms 28 Nov 2022 222nd olivermrose 🇺🇸 526 97 2ms 30 Sep 2021 223rd ldoodle 520 98 1ms 25 Aug 2022 223rd NeatCrown 🇨🇦 520 98 1ms 14 Dec 2022 225th pdewilde 515 99 2ms 18 Oct 2019 First Prev 151–225 of 284 Next Last