Emirp Numbers in all languages 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 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 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 823rd giacomogallina 684 79 33ms 13 Jun 2019 823rd siegelzero 684 79 14ms 7 Aug 2019 823rd handisb 684 79 16ms 26 Oct 2019 823rd olivermrose 🇺🇸 684 79 10ms 20 Oct 2021 823rd guilhem-roy 🇫🇷 684 79 16ms 26 Feb 2022 823rd tri1212 🇻🇳 684 79 17ms 17 Jul 2022 823rd P-Quentin 🇫🇷 684 79 12ms 3 Aug 2022 823rd elgan65536 684 79 14ms 7 Apr 2024 823rd AlephSquirrel 684 79 10ms 19 Jul 2024 823rd Keegan-T 🇨🇦 684 79 15ms 23 Apr 2025 823rd evan18c 684 79 14ms 23 Apr 2025 837th primo-ppcg 🇹🇭 684 109 1ms 3 Oct 2020 837th MeWhenI 🇻🇦 684 109 1ms 20 Apr 2022 839th jjatria 683 54 106ms 29 Jul 2022 840th iznax 682 82 318ms 21 Nov 2021 840th tkr-sh 🇰🇵 682 82 311ms 14 Jun 2022 842nd alomiF 681 97 163ms 24 Aug 2024 843rd MeWhenI 🇻🇦 679 95 2ms 20 Feb 2023 844th doge1338 678 83 9ms 20 Mar 2021 844th GrayJoKing 🇦🇺 678 83 307ms 30 Mar 2021 844th two-bad 🇬🇧 678 83 9ms 15 Feb 2024 847th primo-ppcg 🇹🇭 678 102 27ms 13 Jul 2021 847th JayXon 🇺🇸 678 102 28ms 13 Sep 2023 849th sisyphus-ppcg 🇦🇺 677 63 844ms 23 Mar 2022 849th dokutan 677 63 934ms 14 Apr 2024 851st ovs-code 🇩🇪 677 95 425ms 16 Jun 2024 852nd StanislavNikolov 676 80 10ms 26 Nov 2017 852nd LlamaLad7 🇬🇧 676 80 14ms 17 Jan 2021 852nd voidmax 676 80 9ms 1 Dec 2021 852nd ejini6969 676 80 10ms 1 Apr 2023 852nd SB-945 676 80 25ms 13 Feb 2024 857th boxjelly 674 98 269ms 5 Jan 2021 857th tobeannouncd 674 98 170ms 9 Jan 2024 859th nwellnhof 🇩🇪 672 101 334ms 25 Sep 2025 860th cure-honey 🇯🇵 672 121 47ms 6 Jul 2021 861st molecules 671 55 88ms 27 Dec 2017 862nd MeWhenI 🇻🇦 671 98 4ms 29 Nov 2022 863rd f-tucker 671 144 7ms 20 Feb 2024 864th ian-odonnell 670 84 8ms 5 Mar 2018 864th LordSir101 670 84 9ms 10 Sep 2025 866th MeWhenI 🇻🇦 670 85 5ms 29 May 2023 866th targrik 670 85 4ms 28 Jul 2025 868th MeWhenI 🇻🇦 668 75 445ms 24 May 2024 869th Yewzir 🇧🇪 668 118 3ms 18 days ago 870th dokutan 668 140 260ms 1 Apr 2024 871st emgordon154 667 44 54ms 13 Sep 2024 872nd Espiobest 667 81 22ms 26 Feb 2021 872nd gilufin 667 81 14ms 23 May 2021 872nd Waffle3z 667 81 9ms 7 Sep 2021 872nd quimey 667 81 16ms 21 Jun 2023 876th fruno-bulax 667 99 146ms 16 Feb 2019 877th ovs-code 🇩🇪 666 67 220ms 12 Mar 2024 878th emgordon154 666 79 127ms 4 Aug 2024 879th JOrE20 🇺🇸 666 145 6ms 6 days ago 880th olivermrose 🇺🇸 665 60 39ms 31 Oct 2021 881st pardouin 🇫🇷 665 62 665ms 29 Aug 2025 882nd dokutan 663 97 458ms 23 Jul 2025 883rd MateuszPietrzak 🇵🇱 663 107 50ms 9 Jan 2024 883rd HumanoidCPU 663 107 53ms 5 May 2024 883rd ovs-code 🇩🇪 663 107 51ms 3 Jun 2024 886th jakobwitte 662 85 9ms 20 Mar 2018 886th janbehrens 🇩🇪 662 85 11ms 17 Aug 2021 888th ashtraypettingzoo 🇺🇸 661 100 150ms 12 Feb 2023 889th 5quiwyrm 659 53 182ms 2 Sep 2025 890th AlephSquirrel 659 76 605ms 19 Jul 2024 891st jmerle 🇳🇱 659 82 12ms 11 Jul 2023 891st Powerroff 659 82 32ms 10 Nov 2024 891st RaBa21 🇭🇺 659 82 12ms 19 Jul 2025 894th sisyphus-ppcg 🇦🇺 659 125 1ms 15 May 2022 894th GolfingSuccess 🇬🇷 659 125 1ms 16 May 2022 894th MeWhenI 🇻🇦 659 125 2ms 18 May 2022 894th ovs-code 🇩🇪 659 125 1ms 20 May 2022 894th inventshah 659 125 1ms 22 May 2022 894th lynn 659 125 2ms 27 May 2022 894th nwellnhof 🇩🇪 659 125 1ms 7 Jul 2022 First Prev 826–900 of 3,107 Next Last