Happy Numbers (Long) 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 Calendar 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 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 Numbrix 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 ArkScript 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 ArkScript 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 Calendar 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 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 Numbrix 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 1st Lydxn 🇨🇦 1,000 83 441ms 25 Apr 2022 1st JayXon 🇺🇸 1,000 83 436ms 25 Apr 2022 1st tomtheisen 🇺🇸 1,000 83 456ms 9 Feb 2023 1st nwellnhof 🇩🇪 1,000 83 467ms 2 Mar 2023 1st btnlq 1,000 83 429ms 2 Mar 2023 1st Steffan153 🇫🇮 1,000 83 440ms 5 Mar 2023 1st sean-niemann 🇺🇸 1,000 83 430ms 16 May 2024 8th MeWhenI 🇻🇦 943 88 440ms 16 Aug 2023 8th stefangimmillaro 943 88 446ms 18 Sep 2023 8th namelessiw 943 88 481ms 9 Jun 2024 11th DialFrost 🇸🇬 933 89 444ms 16 Nov 2025 12th AdrienHache 🇫🇷 883 94 462ms 2 Jun 2023 13th Shanethegamer 🇺🇸 856 97 444ms 20 Jun 2022 13th billings7 🇬🇧 856 97 442ms 21 May 2024 13th Yax42 🇫🇷 856 97 445ms 8 days ago 16th Yewzir 🇧🇪 814 102 395ms 13 Jan 2024 17th dokutan 806 103 405ms 23 Nov 2025 18th primo-ppcg 🇹🇭 798 104 382ms 21 Nov 2021 18th Irratix 🇳🇱 798 104 404ms 13 Dec 2021 18th ericlangedijk 🇸🇮 798 104 453ms 17 Mar 2022 18th Matgc04 798 104 394ms 22 Aug 2023 18th CaedenHarper 🇨🇦 798 104 386ms 5 Nov 2025 23rd arctouch-cristiannevianna 790 105 425ms 26 May 2023 23rd annaproxy 790 105 454ms 11 Apr 2025 25th janbehrens 🇩🇪 761 109 383ms 21 Nov 2021 26th Re-Adventures 🇮🇳 748 111 397ms 15 Apr 2025 27th snoozingnewt 🇨🇦 716 116 450ms 4 Oct 2025 28th Adix-null 🇱🇹 648 128 424ms 30 Jul 2023 29th KatieLG 🇬🇧 638 130 448ms 21 Oct 2022 30th c0d3-4-F00d 🇩🇪 634 131 410ms 21 Nov 2021 31st hamhub7 619 134 404ms 3 Aug 2022 32nd msbranicky 589 141 395ms 28 Aug 2023 33rd tomh1012 572 145 482ms 11 Dec 2025 34th rifatx 532 156 405ms 16 Jul 2024 35th ChrisTheisen 519 160 444ms 19 Dec 2022 36th bac0id 485 171 426ms 30 Jun 2024 37th weliveinhell 🇭🇹 480 173 408ms 23 Sep 2023 38th aliakseikalosha 449 185 409ms 21 Nov 2021 39th HumanoidCPU 342 243 450ms 23 Jun 2024 40th amazingalek 260 319 369ms 9 days ago 41st kevinnaviapaiva 249 334 423ms 22 Feb 2025 42nd mwarvik 🇳🇴 146 570 337ms 10 days ago 43rd retrohun 117 711 360ms 27 Dec 2022 43rd Mabeloid 🇳🇴 117 711 398ms 18 Sep 2024 45th KatieLG-Transpiler 🇬🇧 116 715 385ms 23 Jun 2022 1–45 of 45
