Abundant Numbers
3rd
51st
Abundant Numbers (Long)
3rd
27th
Arithmetic Numbers
23rd
ASCII Table
2nd
144th
Card Number Validation
70th
Catalan Numbers
13th7th
8th
19th
1st
22nd
Collatz
7th
3rd
123rd
Day of Week
4th
1st
6th14th
1st
20th
Divisors
46th18th
1st
36th39th23rd
1st
1st
Evil Numbers (Long)
3rd
18th30th
162nd
Factorial Factorisation
24th
Farey Sequence
119th
Fibonacci
12th37th8th1st1st23rd19th1st12th1st32nd27th38th
1st67th1st19th59th60th
55th
Fractions
3rd
2nd
13th
1st
1st
Happy Numbers
126th
Happy Numbers (Long)
29th
Inventory Sequence
57th
ISBN
6th
Leap Years
10th
17th
48th
Look and Say
3rd
3rd4th16th
💎29th55th
9th
Medal Tally
4th
95th
Niven Numbers (Long)
3rd
25th
37th
Number Spiral
152nd
Odious Numbers
1st
140th
Odious Numbers (Long)
3rd
1st29th
96th
Ordinal Numbers
2nd
243rd
21st
Pangram Grep
8th
10th
52nd
Pascal’s Triangle
34th
1st
Pernicious Numbers
1st
172nd
Pernicious Numbers (Long)
1st
61st
Prime Numbers
1st1st
432nd
Prime Numbers (Long)
1st1st
181st
Recamán
137th
ROT13
46th
Scrambled Sort
4th
8th
6th
Smith Numbers
86th
Time Distance
176th
Transpose Sentence
102nd
Van Eck Sequence
106th
𝑒
9th7th
5th
5th10th
100th
21st