Abundant Numbers
4th
56th
Abundant Numbers (Long)
4th
33rd
Arithmetic Numbers
24th
ASCII Table
2nd
163rd
Card Number Validation
83rd
Catalan Numbers
14th8th
8th
21st
1st
25th
Collatz
7th
144th
Day of Week
4th
1st
1st
11th14th
1st
26th
Divisors
52nd19th
1st
39th42nd25th
1st
1st
Evil Numbers (Long)
3rd
21st35th
179th
Factorial Factorisation
29th
Farey Sequence
131st
Fibonacci
13th39th13th1st1st25th23rd1st13th1st
35th28th42nd
1st72nd1st21st63rd68th
59th
Fractions
3rd
2nd
14th
1st
1st
Happy Numbers
143rd
Happy Numbers (Long)
35th
Inventory Sequence
69th
ISBN
6th
Leap Years
10th
19th
56th
Look and Say
4th
3rd4th
17th
1st32nd67th
10th
Medal Tally
5th
106th
Niven Numbers (Long)
3rd
27th
42nd
Number Spiral
170th
Odious Numbers
1st
156th
Odious Numbers (Long)
3rd
1st33rd
111th
Ordinal Numbers
2nd
255th
23rd
Pangram Grep
9th
61st
Pascal’s Triangle
39th
1st
Pernicious Numbers
1st
192nd
Pernicious Numbers (Long)
1st
80th
Prime Numbers
1st1st
463rd
Prime Numbers (Long)
1st1st
202nd
Recamán
152nd
ROT13
61st
Scrambled Sort
4th
9th
7th
Smith Numbers
93rd
Time Distance
192nd
Transpose Sentence
118th
Van Eck Sequence
129th
√2
103rd
𝑒
9th7th
5th
5th12th
120th
22nd