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 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 NFA Simulator 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 NFA Simulator 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 59th LostSyntax21 🇬🇧 867 60 2ms 22 Aug 2024 59th gigaprofisi 🇺🇸 867 60 2ms 7 Mar 2025 78th alichraghi 852 61 2ms 15 Oct 2021 78th akshatj27 🇦🇶 852 61 2ms 11 Jan 2022 78th LorenzoDeGaspari 852 61 1ms 20 Jun 2022 78th jaxmattfair 🇺🇸 852 61 2ms 31 Aug 2022 78th angelsz1 852 61 2ms 12 Sep 2022 78th slerpyyy 🇩🇪 852 61 2ms 31 Oct 2022 78th mathb0y512 852 61 1,810ms 16 Nov 2022 78th stefangimmillaro 852 61 2ms 18 Sep 2023 78th two-bad 🇬🇧 852 61 2ms 26 Nov 2023 78th orthoplex 🇨🇽 852 61 2ms 19 Jul 2024 78th dokutan 852 61 2ms 14 Jul 2025 89th YellowBunnyGit 839 62 2ms 2 Jan 2021 89th peculiarination 839 62 2ms 29 Apr 2021 89th TheHammerBro 839 62 2ms 5 May 2021 89th nyoshe 839 62 1ms 24 Sep 2023 89th warmCabin 839 62 2ms 10 Nov 2023 94th TomatOid 825 63 2ms 12 May 2021 94th AndreaNeti 825 63 2ms 16 Jun 2022 94th mttcrn 825 63 2ms 21 Mar 2025 97th mokymok 🇺🇸 813 64 2ms 21 Jul 2021 97th Ripick 813 64 2ms 18 Jul 2022 97th jhpaques 🇫🇷 813 64 1ms 4 Dec 2022 97th CatsAreFluffy 813 64 2ms 15 Jan 2023 97th Vinterion 813 64 2ms 6 Nov 2023 97th Jonatan6 🇩🇰 813 64 2ms 17 Apr 2024 103rd pineapplehunter 800 65 2ms 22 May 2019 103rd simontime 800 65 2ms 14 Sep 2020 103rd Alesun 🇮🇹 800 65 2ms 15 Jan 2021 106th oschmidh 788 66 2ms 19 Nov 2020 106th LordAzyks 🇫🇷 788 66 2ms 22 Jun 2022 108th speles 🇺🇦 776 67 2ms 31 Oct 2023 108th RealAMC 🇳🇿 776 67 1ms 27 Nov 2023 108th Lv0Sys 🇵🇱 776 67 2ms 3 Jun 2025 111th VictorChemin 🇫🇷 765 68 2ms 24 Nov 2021 111th KenanHanke 765 68 2ms 20 Feb 2023 111th f-tucker 765 68 2ms 8 Jan 2024 111th heanyang1 765 68 2ms 24 May 2025 115th cmayer777 754 69 2ms 7 Nov 2022 115th 5quiwyrm 754 69 2ms 28 Jul 2025 115th Maashau 754 69 2ms 3 hours ago 118th jlangvand 743 70 2ms 9 Aug 2021 118th shellbertt 🇨🇦 743 70 6ms 30 Nov 2021 118th annaproxy 743 70 2ms 4 Jun 2023 118th elgan65536 743 70 2ms 11 Nov 2023 118th gastropner 743 70 2ms 11 Feb 2025 123rd alexjlaberge 732 71 2ms 22 Jul 2020 123rd RYNO8 732 71 2ms 7 Dec 2021 123rd Heathcorp 🇦🇺 732 71 2ms 16 Feb 2022 123rd H3Rol4x 732 71 2ms 7 Dec 2023 123rd jupj 🇫🇮 732 71 2ms 19 Feb 2024 128th shaneliu-zf 🇹🇼 722 72 2ms 3 Jul 2020 128th Re-Adventures 🇮🇳 722 72 2ms 22 Mar 2021 128th wansacis 🇩🇪 722 72 2ms 20 Aug 2021 128th loganmacdougall 🇨🇦 722 72 2ms 6 Nov 2021 128th Natanaelel 🇸🇪 722 72 1ms 7 Dec 2021 128th Betuaredead 722 72 2ms 4 Jan 2023 128th LogicalJoe 722 72 2ms 2 May 2023 128th bac0id 722 72 2ms 22 Sep 2023 128th Grrisly 722 72 2ms 3 Nov 2023 128th licekto 722 72 2ms 25 Feb 2024 128th xiaoyiming123 722 72 2ms 12 Jul 2025 128th Babafaba 722 72 2ms 15 Oct 2025 128th luuumine 🇫🇷 722 72 2ms 21 days ago 128th prestosilver 🇺🇸 722 72 2ms 6 days ago 142nd BenAns 712 73 2ms 26 Sep 2020 142nd ei14 712 73 2ms 21 Jun 2021 142nd ibexq 712 73 2ms 30 Sep 2022 142nd User2654 712 73 1ms 10 Feb 2023 142nd oscargeerts 712 73 1ms 23 Jun 2025 142nd solisolu 712 73 2ms 20 days ago 148th ramytarchichy 703 74 1ms 23 Jun 2019 148th LexouDuck 703 74 3ms 24 Oct 2020 148th boxjelly 703 74 2ms 16 Feb 2021 First Prev 76–150 of 283 Next Last