The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Happy Numbers in Python 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 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 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 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 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 641st hotmanga 363 171 9ms 7 Nov 2023 641st xbxbxb007 363 171 10ms 10 Jan 2024 643rd janga1 360 172 16ms 12 Aug 2021 643rd GitQuick 360 172 11ms 9 Mar 2024 645th chriscconte 358 173 10ms 16 Apr 2019 645th jjbvtk 358 173 10ms 3 Sep 2021 647th skps2010 344 180 9ms 4 Jan 2019 647th devRND-ess 344 180 13ms 30 Apr 2020 647th GlennHA 344 180 9ms 15 May 2021 647th theunofficialcoder 344 180 10ms 12 Jan 2024 651st willzywiec 343 181 10ms 5 Aug 2018 651st Unknownuserfrommars 343 181 11ms 20 Nov 2024 653rd zuparnowa 341 182 17ms 23 Jan 2019 653rd henrytranter 341 182 16ms 20 Sep 2019 655th dylanjones92 337 184 10ms 17 Jan 2024 656th shinylego 335 185 10ms 19 Oct 2022 657th Aniketgautam 330 188 10ms 6 Apr 2018 657th schmisev 330 188 10ms 11 Oct 2018 657th alfonsoalves 330 188 9ms 27 Feb 2024 660th Bananapants22 328 189 11ms 16 Aug 2022 661st jmmographer 326 190 10ms 20 Oct 2023 662nd AbuzarN 323 192 10ms 4 Oct 2023 663rd rohan335 316 196 10ms 24 Jul 2024 664th newc0m 305 203 18ms 7 Dec 2018 665th Upload-and-View 🇺🇦 304 204 10ms 9 Aug 2025 666th ariesmarinus 298 208 10ms 3 Dec 2024 667th itljan30 287 216 10ms 6 Oct 2024 668th janedoloris 283 219 9ms 14 Feb 2021 668th RobinStevenMartinez 283 219 10ms 27 Aug 2021 668th atazzam 🇺🇸 283 219 11ms 2 Apr 2022 671st eje24 278 223 20ms 22 Jul 2020 672nd BLD933 🇲🇦 273 227 11ms 2 Sep 2023 673rd kevinnaviapaiva 272 228 10ms 13 Feb 2025 674th DylanGodfrey 267 232 10ms 5 Jun 2018 675th clodalala 265 234 10ms 13 Nov 2019 676th dens558 262 237 10ms 25 May 2019 677th fl3ur1nestimable 258 240 10ms 3 Apr 2022 678th PrestonWin 249 249 10ms 20 Nov 2021 679th twrogers1 240 258 10ms 17 Aug 2020 680th rschwa6308 🇺🇸 238 260 17ms 6 Aug 2020 681st kpasc 237 262 12ms 13 Jul 2018 682nd scottJsonar 230 269 9ms 29 Nov 2019 683rd wrhm 225 276 10ms 12 Dec 2020 684th sayloren 218 284 11ms 11 Jun 2021 685th EmadAIsmael 214 290 10ms 16 Jan 2019 686th cybermoonman 212 293 23ms 23 Aug 2020 687th Emsi7 207 299 10ms 14 Jun 2023 688th Zhenyu-Bo 203 306 10ms 1 Aug 2025 689th NuqieNoila 197 314 11ms 1 Feb 2019 690th breeezi 185 335 9ms 3 Feb 2020 691st Noooiz 183 338 10ms 30 Dec 2018 692nd valdemarsoegaard 182 341 10ms 2 Dec 2020 693rd gregorywood99 174 356 10ms 20 Sep 2021 694th 1isaaclaryea 171 362 10ms 29 May 2020 695th cva 159 391 11ms 16 Apr 2020 696th sandybeachum 145 429 10ms 19 Mar 2021 697th somT-oss 141 440 10ms 28 Nov 2024 698th Crankbrother 139 446 12ms 25 Jun 2020 699th enok82 137 453 16ms 3 Sep 2019 700th Balaji-Jag 115 541 10ms 12 Nov 2019 701st nikkipinky 65 947 11ms 4 Jan 2021 First Prev 641–701 of 701
