12 Days of Christmas
417
402
Abundant Numbers
678
Arabic to Roman
380
420
Arithmetic Numbers
545
671
715
804445
723
690
722
Arrows
177
Ascending Primes
113
92
245
328
Card Number Validation
355
491
Catalan’s Constant
129
59
CSS Colors
75
Day of Week
315564419
660
Divisors
831
Emojify
258
Factorial Factorisation
289
Farey Sequence
391
Fizz Buzz
755
830597
942234
949893
822
868
Fractions
584
Intersection
494
ISBN
351
Kaprekar Numbers
126
63
Leap Years
529
Levenshtein Distance
215
ln 2
81921101017095
N Queens
235
Niven Numbers
617
Niven Numbers (Long)
677
Ordinal Numbers
519
514
PalindromemordnilaP
610
Prime Numbers
633
Quine
615
967
411357723
337
575473878
11846160529
467
307
655635
319592202
946259
857633105
820
Repeating Decimals
363
Rock-paper-scissors-Spock-lizard
379
Roman to Arabic
408
Scrambled Sort
425
585
Seven Segment
257
Spelling Numbers
195
Star Wars Opening Crawl
224
Tic-tac-toe
414
United States
96
Vampire Numbers
104
62
γ
2271782342452971671122011936093889010918110092
1661784686
3382047040112116194214486227802416994621855319756204
338226197393534134515182
λ
23018723924922919617320417197168115149175164173165
213
π
8596119101789998114675343628290566748
1372762
1261525829
10313316017325745050561033813440138
34220413569253108132111
τ
81
φ
53
√2
50
𝑒
55
111
67