Prime Numbers in PHP 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 1st primo-ppcg 🇹🇭 1,000 43 11ms 5 Jun 2018 2nd sisyphus-ppcg 🇦🇺 977 44 5ms 18 Dec 2020 3rd Lydxn 🇨🇦 956 45 4ms 2 Jul 2023 4th emplv 🇱🇻 935 46 4ms 7 May 2021 4th targrik 935 46 5ms 5 Dec 2024 4th sean-niemann 🇺🇸 935 46 4ms 17 Jan 2025 4th xsot 🇸🇬 935 46 5ms 29 Mar 2025 8th GrayJoKing 🇦🇺 896 48 5ms 19 Dec 2020 8th KasperKivimaeki 🇫🇮 896 48 5ms 17 Dec 2025 10th UpwardProcess 878 49 5ms 18 Jul 2019 10th prplz 🇦🇺 878 49 5ms 6 Mar 2020 10th rucin93 🇵🇱 878 49 4ms 6 Sep 2020 10th Argeento 🇵🇱 878 49 4ms 10 Oct 2020 10th BBoehm 🇩🇪 878 49 5ms 26 Oct 2020 10th aksyristos 878 49 5ms 25 Oct 2022 10th DialFrost 🇸🇬 878 49 5ms 10 Feb 2023 10th MeWhenI 🇻🇦 878 49 5ms 31 Mar 2024 10th snoozingnewt 🇨🇦 878 49 5ms 21 days ago 10th GolfingSuccess 🇬🇷 878 49 5ms 10 hours ago 20th madex 🇩🇪 860 50 4ms 22 Aug 2021 20th rollershutter 860 50 4ms 27 Jun 2024 20th CaedenHarper 🇨🇦 860 50 4ms 26 Jan 2025 23rd activekim 843 51 5ms 2 Aug 2018 23rd ondras 843 51 5ms 1 May 2020 23rd peculiarination 843 51 5ms 29 Apr 2021 23rd c0d3-4-F00d 🇩🇪 843 51 4ms 25 May 2021 23rd alichraghi 843 51 5ms 15 Oct 2021 28th villfa 811 53 5ms 7 Mar 2018 28th janbehrens 🇩🇪 811 53 4ms 3 Sep 2020 28th Shanethegamer 🇺🇸 811 53 5ms 21 Apr 2022 31st Yewzir 🇧🇪 796 54 5ms 5 Nov 2023 32nd Attero 🇸🇪 782 55 4ms 8 Sep 2020 32nd stefangimmillaro 782 55 5ms 22 Oct 2022 32nd m-tkach 🇺🇦 782 55 4ms 11 Apr 2024 35th KrausRaus 🇺🇸 768 56 4ms 7 Dec 2021 36th labster 754 57 4ms 26 Feb 2018 36th nnchutchikov 754 57 4ms 12 Dec 2024 36th fuzzylojik-golf 🇺🇸 754 57 5ms 31 Jul 2025 36th H3Rol4x 754 57 4ms 8 Sep 2025 40th jrdbrndt 729 59 4ms 14 Feb 2018 40th hyvyys 729 59 5ms 21 Sep 2020 40th orthoplex 🇨🇽 729 59 4ms 6 Oct 2020 40th sebipopa 🇷🇴 729 59 5ms 23 Sep 2022 40th stefangabos 🇷🇴 729 59 5ms 23 Sep 2022 40th edsrzf 🇳🇿 729 59 4ms 19 Sep 2024 46th tvolf 717 60 6ms 9 May 2019 46th Tonic-Box 717 60 5ms 7 Nov 2020 48th Re-Adventures 🇮🇳 705 61 4ms 4 Nov 2022 49th pschmid0 🇺🇸 694 62 5ms 7 Aug 2022 49th sultan 694 62 6ms 2 Apr 2024 51st lacroixjonathan87 672 64 4ms 6 Sep 2020 51st satutalo 🇫🇮 672 64 5ms 29 Nov 2022 53rd owenoclee 662 65 4ms 6 Oct 2017 53rd alexeytihomirov 662 65 4ms 5 Apr 2019 53rd josh-h-90 662 65 5ms 1 Feb 2021 53rd cnelson20 662 65 4ms 8 Aug 2022 57th Betuaredead 652 66 4ms 4 Jan 2023 57th hossammohammed72 652 66 4ms 12 Jul 2023 59th dokutan 642 67 5ms 15 Jun 2024 59th Kokusui 🇯🇵 642 67 5ms 26 Jul 2024 61st aschui 632 68 5ms 5 Nov 2018 61st lightbliss 632 68 4ms 4 Sep 2019 61st akira-aizawa 🇯🇵 632 68 5ms 27 Dec 2021 61st ArtemBrovko 632 68 4ms 15 Jul 2023 65th volktron 623 69 5ms 1 Jun 2019 66th astdefu 614 70 4ms 13 Dec 2022 67th ConnorHowell 597 72 5ms 21 Mar 2018 67th MikeSimpson 597 72 5ms 16 Oct 2018 67th stadamdoki 597 72 5ms 23 Mar 2021 67th infostreams 597 72 4ms 12 Jul 2023 71st Neofox 589 73 4ms 21 Nov 2017 72nd retrohun 581 74 4ms 21 Dec 2018 72nd kchapelier 581 74 5ms 27 Apr 2020 72nd oddvalue 581 74 5ms 23 Aug 2022 72nd rifatx 581 74 5ms 16 Jul 2024 76th zelenovas 🇷🇺 573 75 5ms 10 Feb 2023 76th Florian-Mt 573 75 4ms 9 Jul 2024 76th eclyptox 573 75 4ms 11 Oct 2024 79th rwellens 566 76 4ms 3 Jan 2018 79th JRaspass 🇬🇧 566 76 4ms 12 Feb 2018 1–80 of 142 Next Last