Happy 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 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 800th user189032 731 79 136ms 29 May 2019 800th cbrt-x 731 79 137ms 15 Sep 2023 803rd emgordon154 731 153 1,662ms 16 Sep 2025 803rd Yewzir 🇧🇪 731 153 1,881ms 14 Nov 2025 805th albanian-laundromat 🇺🇸 730 84 108ms 22 Dec 2025 806th Irratix 🇳🇱 727 41 2ms 1 Nov 2020 806th primo-ppcg 🇹🇭 727 41 1ms 2 Nov 2020 806th GrayJoKing 🇦🇺 727 41 1ms 27 Nov 2020 806th KatieLG 🇬🇧 727 41 2ms 9 Dec 2020 806th msbranicky 727 41 1ms 27 Jul 2023 806th dokutan 727 41 2ms 11 Nov 2023 806th AlephSquirrel 727 41 2ms 27 Jan 2025 813th NewDefectus 🇮🇱 727 68 10ms 16 Dec 2021 813th KrausRaus 🇺🇸 727 68 10ms 6 Jan 2026 815th ovs-code 🇩🇪 727 95 27ms 10 Jan 2023 816th msbranicky 726 60 397ms 17 Jan 2024 816th JunkIce 726 60 466ms 23 Feb 2025 818th dokutan 726 75 126ms 23 Jul 2025 819th edsrzf 🇳🇿 725 54 931ms 8 Sep 2025 819th albanian-laundromat 🇺🇸 725 54 816ms 12 Mar 2026 821st ZakkkkAttackkkk 🇵🇭 725 65 33ms 21 Dec 2021 821st bob-th 725 65 55ms 5 Aug 2022 821st btjones0 725 65 57ms 22 Nov 2022 821st falsidge 725 65 9ms 21 Jun 2023 821st madex 🇩🇪 725 65 9ms 3 days ago 826th lynn 724 87 124ms 7 Jul 2024 826th emgordon154 724 87 120ms 18 Feb 2025 826th edsrzf 🇳🇿 724 87 126ms 4 Mar 2025 826th DialFrost 🇸🇬 724 87 118ms 4 Apr 2025 826th acotis 724 87 124ms 15 Apr 2025 826th ovs-code 🇩🇪 724 87 119ms 20 Apr 2025 826th sean-niemann 🇺🇸 724 87 128ms 6 Jun 2025 833rd duckyluuk 🇳🇱 723 73 4ms 16 Dec 2024 834th phdphil 722 43 159ms 9 Apr 2018 835th RussellEmerine 721 80 138ms 30 Nov 2019 835th iczelia 🇩🇪 721 80 158ms 20 Oct 2025 837th GrayJoKing 🇦🇺 720 68 6ms 26 Feb 2026 838th retrohun 720 69 7ms 3 Nov 2024 839th yzhs 🇩🇪 719 38 35ms 21 Jun 2022 840th MeWhenI 🇻🇦 719 89 38ms 28 Aug 2024 841st GrayJoKing 🇦🇺 718 53 1,296ms 13 Sep 2021 841st primo-ppcg 🇹🇭 718 53 1,295ms 22 Sep 2021 843rd GrayJoKing 🇦🇺 718 72 36ms 14 Jun 2022 843rd primo-ppcg 🇹🇭 718 72 36ms 21 Jun 2022 845th duckyluuk 🇳🇱 717 60 2,317ms 26 Oct 2024 846th ovs-code 🇩🇪 717 98 6ms 17 Mar 2023 847th jakzo 716 69 13ms 5 Sep 2021 847th Shanethegamer 🇺🇸 716 69 10ms 25 Apr 2023 849th DialFrost 🇸🇬 716 76 117ms 26 Dec 2024 849th snoozingnewt 🇨🇦 716 76 127ms 29 Nov 2025 851st jared-hughes 716 88 115ms 10 Nov 2022 851st kgodara 716 88 128ms 11 Mar 2023 851st snoozingnewt 🇨🇦 716 88 113ms 29 Nov 2025 851st vang1ong7ang 716 88 116ms 6 days ago 855th Natanaelel 🇸🇪 715 32 43ms 22 Jul 2022 855th SirBogman 🇺🇸 715 32 44ms 10 Sep 2022 857th emgordon154 715 87 473ms 8 Feb 2026 858th Yax42 🇫🇷 715 92 494ms 12 Nov 2025 859th namelessiw 714 61 493ms 5 Mar 2024 859th lifthrasiir 🇰🇷 714 61 518ms 2 Dec 2024 859th DialFrost 🇸🇬 714 61 470ms 26 Dec 2024 862nd Attero 🇸🇪 714 66 53ms 25 Sep 2020 862nd nstearns96 🇬🇧 714 66 20ms 15 Dec 2022 864th Laar 713 81 137ms 1 Apr 2019 864th alomiF 713 81 136ms 5 Oct 2023 864th brimstonetrader 713 81 115ms 26 Jan 2024 867th MeWhenI 🇻🇦 712 92 5ms 2 Oct 2022 868th Alex-x90 🇺🇸 712 97 59ms 4 Dec 2022 868th Herbert00709 🇵🇱 712 97 60ms 8 Jun 2024 870th jusaka 712 182 1,450ms 5 days ago 871st KenanSi 710 31 3ms 24 Feb 2022 871st ashtraypettingzoo 🇺🇸 710 31 3ms 5 Apr 2023 873rd sean-niemann 🇺🇸 706 61 2,257ms 30 Oct 2024 873rd jkelly467 706 61 2,296ms 3 Nov 2025 875th GrayJoKing 🇦🇺 706 70 10ms 20 Sep 2021 875th 0x24a537r9 706 70 12ms 10 Sep 2022 875th TRexOnGit 706 70 10ms 2 May 2025 875th Protothor 706 70 10ms 9 Jul 2025 879th GrayJoKing 🇦🇺 705 72 1ms 9 Apr 2022 880th m-tkach 🇺🇦 705 98 54ms 9 Mar 2023 First Prev 801–880 of 3,305 Next Last