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 79th tomh1012 566 76 5ms 9 Oct 2020 79th Kees-van-Beilen 566 76 4ms 27 Aug 2021 79th iqbal-hossain-momox 566 76 4ms 13 Jul 2023 79th HumanoidCPU 566 76 4ms 18 May 2024 79th Mabeloid 🇳🇴 566 76 4ms 4 Oct 2024 79th jmerle 🇳🇱 566 76 4ms 10 Jan 2025 87th aminrnd 558 77 4ms 12 Jul 2023 88th d4rkne55 551 78 4ms 2 Mar 2018 88th mrdamien 551 78 5ms 28 Mar 2019 88th masashimachida 551 78 5ms 27 Jul 2020 91st YPuest 544 79 5ms 22 Feb 2023 92nd miika 538 80 5ms 29 Mar 2019 92nd pbarath 538 80 5ms 13 Mar 2021 94th xnacly 🇩🇪 524 82 5ms 6 Jul 2023 94th msbranicky 524 82 5ms 8 Sep 2023 94th Jay2k1 524 82 4ms 6 Nov 2025 97th glickel 518 83 5ms 17 Aug 2018 98th ryguyNelson 512 84 4ms 19 Aug 2020 98th fuerst-ede 512 84 5ms 8 Jul 2022 100th vlhommeau 506 85 5ms 21 Nov 2017 101st VVstatus 500 86 5ms 13 Aug 2020 102nd rbicelli 494 87 4ms 6 Apr 2018 102nd iTearo 🇷🇺 494 87 5ms 28 Sep 2020 102nd StronkCheese 🇺🇸 494 87 5ms 21 Feb 2023 105th jessegyger 489 88 4ms 14 Jan 2022 105th piripasa 489 88 5ms 12 Jul 2023 107th mrigankpawagi 483 89 5ms 21 Jan 2018 107th seanplowman 483 89 4ms 19 Jul 2022 107th MaxElf999 483 89 5ms 28 Sep 2022 110th YoungjuneKwon 478 90 5ms 30 Dec 2018 110th Setvizan 478 90 5ms 19 May 2022 112th rholliday 473 91 5ms 1 Mar 2021 112th jusaka 473 91 5ms 3 days ago 114th Onitech 462 93 4ms 14 Nov 2018 114th mammarellas 462 93 5ms 5 Jun 2019 114th givanov2 462 93 5ms 4 Sep 2020 117th akshatj27 🇦🇶 453 95 4ms 11 Jan 2022 118th iamdavidfrancis 430 100 4ms 10 May 2020 118th joll05 🇸🇪 430 100 5ms 24 Aug 2020 118th KatieLG 🇬🇧 430 100 5ms 2 Dec 2020 118th mokymok 🇺🇸 430 100 5ms 9 Nov 2021 118th KatieLG-Transpiler 🇬🇧 430 100 5ms 24 Jun 2022 123rd acotis 426 101 5ms 18 Feb 2025 124th xplodwild 422 102 5ms 15 Apr 2020 125th soren 417 103 5ms 24 Aug 2018 125th mothcolada 🇺🇸 417 103 5ms 6 Dec 2020 127th WardySpirit 413 104 5ms 26 Aug 2020 128th elisherer 🇮🇱 398 108 6ms 26 Mar 2019 129th dwilmer 391 110 4ms 26 Feb 2018 130th vonKrafft 377 114 5ms 25 Mar 2020 130th ze-h 🇺🇸 377 114 5ms 26 Oct 2022 132nd genius257 361 119 5ms 26 Mar 2018 132nd recepuncu 361 119 4ms 28 Jun 2021 134th verticall 341 126 5ms 28 Jul 2019 135th HexF 333 129 4ms 7 Dec 2017 135th ElevatorShaft 333 129 5ms 20 Oct 2019 137th ansnaldo 287 150 5ms 23 Oct 2018 138th kevinnaviapaiva 281 153 4ms 6 Mar 2025 139th kittrz9 253 170 4ms 7 Dec 2017 140th seanleken 204 211 5ms 12 Dec 2019 141st jackmck2000 108 398 5ms 8 Mar 2018 142nd jayanwar 88 489 4ms 28 Nov 2019 First Prev 81–142 of 142