12 Days of Christmas
730
870
Abundant Numbers
708
Arabic to Roman
381
589
Arithmetic Numbers
555
675
719
588446
727
789
727
Arrows
202
Ascending Primes
115
105
246
181
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
577476880
11847161531
468
307
658636
320592202
947259
858634106
822
Repeating Decimals
497
Rock-paper-scissors-Spock-lizard
452
Roman to Arabic
540
Scrambled Sort
416
758
Seven Segment
349
Spelling Numbers
313
Star Wars Opening Crawl
388
Tic-tac-toe
533
United States
127
Vampire Numbers
105
84
γ
8264974873134863002421132524837394889111045310092
1681794687
4621657041113117494315487503804807194751856548364287
591510512516539134518480
λ
509504495497230266206276191146207172180185185206171
266
π
8496119967999100114685943628290596748
1383262
1271075830
1111331611742588505163984514240138
59620413677257108113111
τ
81
φ
53
√2
51
𝑒
55
112
68