Abundant Numbers
3rd
51st
Abundant Numbers (Long)
3rd
28th
Arithmetic Numbers
23rd
ASCII Table
2nd
147th
Card Number Validation
72nd
Catalan Numbers
13th7th
8th
19th
1st
22nd
Collatz
7th
3rd
128th
Day of Week
4th
1st
6th14th
1st
20th
Divisors
46th19th
1st
36th39th23rd
1st
1st
Evil Numbers (Long)
3rd
18th30th
165th
Factorial Factorisation
24th
Farey Sequence
121st
Fibonacci
13th37th8th1st1st23rd20th1st12th1st33rd27th39th
1st67th1st19th60th60th
55th
Fractions
3rd
2nd
13th
1st
1st
Happy Numbers
127th
Happy Numbers (Long)
29th
Inventory Sequence
59th
ISBN
6th
Leap Years
10th
17th
49th
Look and Say
3rd
3rd4th16th
💎29th55th
9th
Medal Tally
5th
98th
Niven Numbers (Long)
3rd
26th
37th
Number Spiral
155th
Odious Numbers
1st
142nd
Odious Numbers (Long)
3rd
1st29th
97th
Ordinal Numbers
2nd
243rd
21st
Pangram Grep
8th
10th
52nd
Pascal’s Triangle
34th
1st
Pernicious Numbers
1st
173rd
Pernicious Numbers (Long)
1st
62nd
Prime Numbers
1st1st
436th
Prime Numbers (Long)
1st1st
182nd
Recamán
137th
ROT13
46th
Scrambled Sort
4th
9th
6th
Smith Numbers
87th
Time Distance
177th
Transpose Sentence
104th
Van Eck Sequence
111th
𝑒
9th7th
5th
5th10th
101st
21st