12 Days of Christmas
730
870
Abundant Numbers
708
Arabic to Roman
382
589
Arithmetic Numbers
555
675
719
589446
728
789
727
Arrows
204
Ascending Primes
115
105
247
182
Card Number Validation
359
609
Catalan’s Constant
131
70
CSS Colors
171
Day of Week
317566422
826
Divisors
877
Emojify
289
Factorial Factorisation
364
Farey Sequence
445
Fizz Buzz
763
833600
947237
670896
900
968
Fractions
688
Intersection
674
ISBN
451
Kaprekar Numbers
127
75
Leap Years
530
Levenshtein Distance
275
ln 2
8193111957195
Minesweeper
N Queens
313
Niven Numbers
619
Niven Numbers (Long)
719
Ordinal Numbers
544
624
PalindromemordnilaP
751
Prime Numbers
633
Quine
615
968
412358724
351
578476880
11847161531
467
307
658636
320592202
947259
858634106
822
Repeating Decimals
497
Rock-paper-scissors-Spock-lizard
452
Roman to Arabic
540
Scrambled Sort
417
758
Seven Segment
349
Spelling Numbers
331
Star Wars Opening Crawl
388
Tic-tac-toe
533
United States
127
Vampire Numbers
105
84
γ
8265034883144873012421132524847394889111045410093
1691794687
4651667041113117496316489504814817194751866549264323
592510513517539134519479
λ
516504495496230266206276191157209176181206212206171
266
π
8496119967999100114685943628290596748
1393262
1271075830
1111331611742589505163984514540138
59720413677257108131111
τ
81
φ
53
√2
51
𝑒
55
112
68