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 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 Gray Code Decoder Gray Code Encoder 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 Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 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 ArkScript 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 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 Gray Code Decoder Gray Code Encoder 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 Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 159th Seek64 🇩🇪 680 75 1ms 15 Nov 2022 159th weliveinhell 🇭🇹 680 75 1ms 14 Oct 2023 163rd AkashTandon167 671 76 1ms 1 Dec 2019 163rd zx5b 671 76 1ms 11 Dec 2020 163rd starxingchenc 671 76 2ms 31 May 2021 163rd HumanoidCPU 671 76 1ms 24 Feb 2024 167th meientau 662 77 1ms 11 May 2019 167th osmith93 662 77 1ms 7 Dec 2019 167th MaxElf999 662 77 1ms 12 Dec 2022 167th matricronia 662 77 2ms 2 Feb 2026 167th bpharaldsson 662 77 2ms 13 Feb 2026 167th RodAlc24 🇪🇸 662 77 2ms 21 Feb 2026 173rd mickmurci 654 78 2ms 30 Dec 2024 174th AforAmpere 646 79 1ms 15 Jun 2020 174th ACMichels 646 79 1ms 14 Aug 2021 174th narad-muni 🇮🇳 646 79 1ms 6 May 2022 174th NickTheEASDude 🇺🇸 646 79 1ms 27 Feb 2024 174th isaiah0311 🇺🇸 646 79 2ms 26 Jan 2026 179th loooph 638 80 1ms 2 Aug 2020 179th agrukuki 638 80 1ms 2 Oct 2020 179th tomh1012 638 80 2ms 10 Nov 2020 179th AaronHe7 638 80 1ms 21 Nov 2022 179th kasarino 638 80 2ms 2 Feb 2026 184th StHagel 630 81 2ms 18 Aug 2020 184th mloumeau 630 81 2ms 19 Jan 2021 184th alexvitkov 630 81 1ms 5 Aug 2022 184th xnacly 🇩🇪 630 81 1ms 6 Jul 2023 184th mikiymk 630 81 1ms 21 Sep 2023 189th jhunterkohler 622 82 1ms 19 May 2021 189th jgbaldwinbrown 622 82 1ms 1 Sep 2021 189th BruceMcRooster 622 82 1ms 24 Mar 2022 189th Jaro32768 🇸🇰 622 82 2ms 8 Feb 2024 189th trinityy-7 622 82 1ms 6 Mar 2024 194th funkkiy 🇧🇷 614 83 1ms 13 Sep 2023 194th Us1ngTh3Hub 614 83 2ms 2 Apr 2024 194th LHLaurini 🇧🇷 614 83 1ms 1 May 2024 194th elttil 614 83 2ms 15 Jun 2024 194th rifatx 614 83 1ms 16 Jul 2024 199th generot 🇧🇬 607 84 1ms 3 Jul 2020 199th resetcentral 607 84 2ms 21 May 2022 199th Mabeloid 🇳🇴 607 84 2ms 21 Oct 2025 202nd Waterperry 600 85 2ms 2 Nov 2021 202nd WalrusesAreAwesome 600 85 2ms 18 Feb 2026 204th aubergine-sauce 593 86 1ms 20 Sep 2023 205th chunky 586 87 1ms 2 Oct 2020 205th Evoniuk 586 87 1ms 31 May 2021 205th AIn0n 586 87 1ms 22 Aug 2021 205th Adrien-AM 586 87 1ms 26 Dec 2021 205th Haksell 🇦🇶 586 87 1ms 28 Feb 2023 205th acotis 586 87 1ms 19 Feb 2025 211th jngbsn 580 88 1ms 2 Mar 2019 211th TornadoCookie 580 88 2ms 17 Oct 2022 213th godraadam 573 89 1ms 16 Nov 2020 213th kallmi28 🇨🇿 573 89 2ms 10 Oct 2023 213th ehulinsky 🇺🇸 573 89 1ms 18 Feb 2024 213th 0dyse 573 89 1ms 6 May 2025 213th SirObby 🇫🇮 573 89 2ms 18 Oct 2025 218th heypwesto 🇳🇿 567 90 1ms 12 Apr 2021 218th Pyro569 567 90 1ms 28 Jul 2023 220th ytaki0801 🇯🇵 560 91 2ms 21 Jun 2021 220th james-downey 560 91 2ms 10 Jul 2022 222nd mamalakic 554 92 1ms 2 Mar 2023 222nd Andrey2001 554 92 2ms 29 Jan 2026 222nd matejmatik123 🇸🇰 554 92 2ms 28 Feb 2026 225th archee303 543 94 1ms 4 Feb 2020 225th msbranicky 543 94 2ms 22 Aug 2023 225th BpbjsGreen 🇨🇳 543 94 2ms 7 Jul 2024 225th aDwarfNamedUrist 543 94 1ms 11 Sep 2024 229th nwdamgaard 537 95 2ms 19 Dec 2021 230th rachelambda 531 96 2ms 7 Jun 2020 230th trist224 🇫🇷 531 96 1ms 28 Nov 2022 232nd olivermrose 🇺🇸 526 97 2ms 30 Sep 2021 233rd ldoodle 520 98 1ms 25 Aug 2022 233rd NeatCrown 🇨🇦 520 98 1ms 14 Dec 2022 235th pdewilde 515 99 2ms 18 Oct 2019 235th shibacho 🇯🇵 515 99 1ms 29 Mar 2022 237th veehz 510 100 1ms 21 Feb 2023 237th Giantnoodlemonster 510 100 2ms 2 Nov 2024 239th Indivicivet 505 101 2ms 15 Mar 2021 239th cnelson20 505 101 1ms 8 Aug 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