Prime Numbers in C# in chars. Cheevos Holes Recent Holes Langs Medals Misc 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 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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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 1st btnlq 1,000 53 326ms 10 Mar 2023 1st JayXon 🇺🇸 1,000 53 342ms 10 Mar 2023 1st Lydxn 🇨🇦 1,000 53 348ms 19 May 2023 1st AdrienHache 🇫🇷 1,000 53 349ms 20 Jun 2023 1st stefangimmillaro 1,000 53 334ms 15 Jul 2023 1st MeWhenI 🇻🇦 1,000 53 344ms 26 Jul 2023 1st namelessiw 1,000 53 345ms 12 Dec 2023 1st sean-niemann 🇺🇸 1,000 53 501ms 23 Dec 2024 1st Yax42 🇫🇷 1,000 53 352ms 9 Feb 2025 10th ScottHamper 981 54 303ms 21 Nov 2021 10th tomtheisen 🇺🇸 981 54 312ms 21 Nov 2021 12th fuzzylojik-golf 🇺🇸 841 63 347ms 31 Jul 2025 13th nwellnhof 🇩🇪 828 64 317ms 21 Dec 2021 13th WalrusesAreAwesome 828 64 359ms 11 Jan 2025 13th prplz 🇦🇺 828 64 334ms 23 Jan 2025 16th Attero 🇸🇪 815 65 317ms 21 Nov 2021 16th billings7 🇬🇧 815 65 319ms 21 Nov 2021 16th KatieLG 🇬🇧 815 65 335ms 21 Nov 2021 16th primo-ppcg 🇹🇭 815 65 312ms 21 Nov 2021 16th roavin 815 65 317ms 29 Jun 2022 16th annaproxy 815 65 332ms 19 May 2023 16th b-illy 🇬🇧 815 65 339ms 21 Jan 2025 23rd Shanethegamer 🇺🇸 803 66 310ms 28 Dec 2021 23rd Yewzir 🇧🇪 803 66 314ms 8 May 2023 23rd janbehrens 🇩🇪 803 66 313ms 27 Nov 2023 23rd SirBogman 🇺🇸 803 66 303ms 3 Jan 2024 27th SmartK8 🇨🇿 791 67 318ms 10 Oct 2022 28th KrausRaus 🇺🇸 779 68 324ms 26 Jun 2023 29th Gaddy 🇫🇷 768 69 328ms 1 Jun 2022 29th postie77 768 69 316ms 18 Apr 2023 31st Irratix 🇳🇱 757 70 321ms 13 Dec 2021 31st Ripick 757 70 312ms 18 Jul 2022 31st CatsAreFluffy 757 70 359ms 28 Nov 2022 34th sultan 746 71 324ms 2 Apr 2024 35th tkr-sh 🇰🇵 736 72 316ms 4 May 2022 35th ChrisTheisen 736 72 320ms 19 Dec 2022 35th mathb0y512 736 72 414ms 8 Feb 2023 38th LS2021 726 73 317ms 24 Nov 2023 38th dokutan 726 73 315ms 14 Jul 2025 40th Meowsan91 🇨🇿 707 75 496ms 21 Nov 2021 41st pan4ever 697 76 329ms 21 Nov 2021 41st hamhub7 697 76 323ms 26 Aug 2022 41st Matgc04 697 76 316ms 23 Feb 2024 41st Squimbletin 697 76 319ms 22 Apr 2025 45th CarsonChr 🇺🇸 679 78 345ms 7 Apr 2024 46th hyvyys 671 79 321ms 21 Nov 2021 47th aliakseikalosha 663 80 353ms 21 Nov 2021 47th oren0 663 80 318ms 21 Nov 2021 47th adlerzei 663 80 375ms 5 May 2022 47th arctouch-sergeymetlov 663 80 318ms 21 Jun 2023 47th ElysiaVesper 663 80 319ms 19 Nov 2023 47th Re-Adventures 🇮🇳 663 80 337ms 15 Apr 2025 53rd tdkkdt 🇷🇺 654 81 328ms 21 Nov 2021 53rd tomh1012 654 81 345ms 21 Nov 2021 53rd MLPdiscord 654 81 446ms 10 Jan 2022 53rd josephdwalker 654 81 320ms 14 Nov 2023 57th ILMTitan 646 82 340ms 21 Nov 2021 57th Romain-1 🇫🇷 646 82 351ms 1 Jun 2022 57th arctouch-cristiannevianna 646 82 366ms 23 May 2023 57th kkoenig 646 82 321ms 25 Dec 2023 57th FreyLuis 646 82 346ms 17 Jan 2024 57th michelebastione 🇮🇹 646 82 346ms 27 Aug 2025 63rd castur1 639 83 319ms 3 Feb 2022 64th JDiLenarda 🇫🇷 631 84 324ms 21 Nov 2021 64th najs91 631 84 311ms 21 Nov 2021 64th bac0id 631 84 326ms 22 Sep 2023 64th epic-programmer-guy 631 84 325ms 19 Dec 2023 64th QzLP2P 631 84 315ms 29 Mar 2024 64th malworthy 631 84 415ms 16 Aug 2024 64th arcpolaris 631 84 346ms 27 Mar 2025 71st leth4 624 85 407ms 5 Jul 2023 71st CaedenHarper 🇨🇦 624 85 320ms 17 Oct 2025 71st Adix-null 🇱🇹 624 85 343ms 10 days ago 74th ericlangedijk 🇸🇮 616 86 333ms 16 Mar 2022 74th Betuaredead 616 86 313ms 4 Jan 2023 1–75 of 140 Next Last