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Prime Numbers in Java 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 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 Chars Time Submitted 1st JayXon 🇺🇸 1,000 66 739ms 24 Sep 2025 1st sean-niemann 🇺🇸 1,000 66 674ms 24 Sep 2025 1st namelessiw 1,000 66 512ms 4 Oct 2025 1st MeWhenI 🇻🇦 1,000 66 728ms 7 Nov 2025 5th nwellnhof 🇩🇪 943 70 428ms 25 Sep 2025 5th DialFrost 🇸🇬 943 70 554ms 13 Nov 2025 5th KasperKivimaeki 🇫🇮 943 70 458ms 2 Dec 2025 5th Lydxn 🇨🇦 943 70 401ms 14 Dec 2025 9th edsrzf 🇳🇿 930 71 485ms 24 Sep 2025 9th b-illy 🇬🇧 930 71 482ms 24 Sep 2025 9th voytxt 🇨🇿 930 71 489ms 25 Sep 2025 9th stefangimmillaro 930 71 482ms 6 Oct 2025 9th h3ra993huskp 🇯🇵 930 71 673ms 30 Nov 2025 9th ScottHamper 930 71 475ms 30 Nov 2025 9th fuzzylojik-golf 🇺🇸 930 71 418ms 23 Dec 2025 16th Shanethegamer 🇺🇸 868 76 472ms 25 Sep 2025 16th Yewzir 🇧🇪 868 76 362ms 2 Oct 2025 16th kmathis22 868 76 415ms 24 Oct 2025 16th Jacob385 868 76 473ms 27 Oct 2025 20th WildTooth 835 79 461ms 9 Oct 2025 21st dokutan 795 83 348ms 24 Sep 2025 22nd Liibe 776 85 482ms 25 Sep 2025 23rd snoozingnewt 🇨🇦 767 86 463ms 5 Dec 2025 24th ethanlally 750 88 436ms 5 Nov 2025 25th CaedenHarper 🇨🇦 725 91 383ms 24 Sep 2025 26th Schmitt-Very-Cool 717 92 503ms 3 Oct 2025 27th squid233 710 93 470ms 7 Nov 2025 27th HumanoidCPU 710 93 437ms 8 Nov 2025 27th Florian-Mt 710 93 507ms 28 Dec 2025 30th primo-ppcg 🇹🇭 641 103 435ms 24 Apr 2020 30th prplz 🇦🇺 641 103 438ms 18 Nov 2020 30th Steffan153 🇫🇮 641 103 398ms 9 Aug 2024 33rd Attero 🇸🇪 611 108 390ms 28 Apr 2020 33rd KatieLG 🇬🇧 611 108 491ms 22 Oct 2021 33rd Widgitty 611 108 427ms 18 Jul 2023 36th Looney32768 600 110 374ms 27 Jan 2023 37th BBoehm 🇩🇪 595 111 407ms 29 Oct 2020 37th helbling 🇨🇭 595 111 385ms 11 Mar 2024 39th janbehrens 🇩🇪 584 113 371ms 3 Sep 2020 39th KrausRaus 🇺🇸 584 113 408ms 22 Mar 2021 39th neihousaigaai 584 113 404ms 6 Apr 2021 39th inventshah 584 113 395ms 20 Apr 2021 39th Irratix 🇳🇱 584 113 407ms 7 Dec 2021 39th Betuaredead 584 113 379ms 14 Nov 2023 39th SirBogman 🇺🇸 584 113 393ms 3 Jan 2024 39th yoshykai 584 113 519ms 30 Mar 2025 39th eMGeeneer 584 113 430ms 20 Sep 2025 48th madeforlosers 579 114 354ms 5 Jan 2024 48th sultan 579 114 396ms 27 Mar 2024 50th cbrt-x 564 117 371ms 29 Aug 2021 50th Leftykap 564 117 399ms 14 Sep 2022 50th FlorianCassayre 🇫🇷 564 117 403ms 28 Sep 2022 50th piano-miles 564 117 371ms 7 Feb 2023 54th Rhinozz 🇨🇦 559 118 406ms 12 Aug 2021 55th lukehewittvandy 555 119 359ms 19 Jul 2022 56th shellbertt 🇨🇦 550 120 438ms 26 Dec 2021 57th jjstreet 545 121 395ms 30 Apr 2020 58th Antonio-Vel 541 122 395ms 20 Aug 2022 58th mathb0y512 541 122 398ms 14 Nov 2022 60th konst-aa 537 123 405ms 11 Aug 2022 61st bwat2 532 124 389ms 21 Apr 2022 61st CarsonChr 🇺🇸 532 124 415ms 26 Jul 2024 63rd coltraloz 🇪🇸 528 125 433ms 6 Mar 2025 64th ricehens 524 126 415ms 26 Nov 2021 64th Carloz69 524 126 400ms 3 Dec 2021 66th bac0id 520 127 383ms 26 Sep 2023 67th Re-Adventures 🇮🇳 516 128 411ms 17 Mar 2021 68th richard-oelze 🇩🇪 512 129 408ms 1 May 2021 69th tomh1012 508 130 437ms 9 Oct 2020 69th Luca2812 508 130 407ms 30 Dec 2021 69th lorenzosim 508 130 406ms 5 Aug 2022 69th cnelson20 508 130 402ms 8 Aug 2022 69th GWStuart 508 130 438ms 1 Jul 2024 74th tkr-sh 🇰🇵 504 131 388ms 4 May 2022 74th lordsnek 504 131 398ms 26 Jan 2024 76th caynraiser 500 132 573ms 8 Dec 2021 77th Kusarr 496 133 372ms 17 Dec 2020 77th Bolix7 496 133 418ms 23 May 2021 77th astdefu 496 133 431ms 13 Dec 2022 77th gigaprofisi 🇺🇸 496 133 408ms 7 Mar 2025 1–80 of 170 Next Last