12 Days of Christmas
730
870
Abundant Numbers
708
Arabic to Roman
381
589
Arithmetic Numbers
554
674
719
588446
727
788
726
Arrows
204
Ascending Primes
115
104
246
181
Card Number Validation
358
609
Catalan’s Constant
131
70
CSS Colors
171
Day of Week
317566421
826
Divisors
877
Emojify
289
Factorial Factorisation
363
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
350
577476879
11847161530
467
307
658636
319592202
947259
858634106
821
Repeating Decimals
496
Rock-paper-scissors-Spock-lizard
452
Roman to Arabic
540
Scrambled Sort
416
757
Seven Segment
349
Spelling Numbers
331
Star Wars Opening Crawl
388
Tic-tac-toe
533
United States
127
Vampire Numbers
105
83
γ
8215024863134862982421132524837394889111045210092
1681794687
4641657041113116496314488503804807194751856549164322
591509512518539134518478
λ
515503494495230266206276191157209178180205212206171
266
π
8496119967999100114685943628290596748
1383262
1271075830
1111331611742588505163984514440138
59620313677257108131111
τ
81
φ
53
√2
51
𝑒
55
112
71