Abundant Numbers
4th
57th
Abundant Numbers (Long)
4th
34th
Arithmetic Numbers
25th
ASCII Table
3rd
163rd
Card Number Validation
84th
Catalan Numbers
14th8th
8th
21st
1st
25th
Collatz
7th
145th
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
133rd
Fibonacci
13th39th14th1st1st26th23rd1st13th1st
36th28th42nd
1st72nd1st22nd63rd65th
59th
Fractions
3rd
2nd
14th
1st
1st
Happy Numbers
144th
Happy Numbers (Long)
35th
Inventory Sequence
70th
ISBN
6th
Leap Years
10th
19th
56th
Look and Say
4th
3rd4th
17th
1st32nd67th
10th
Medal Tally
5th
106th
Niven Numbers (Long)
3rd
28th
42nd
Number Spiral
170th
Odious Numbers
1st
157th
Odious Numbers (Long)
3rd
1st34th
112th
Ordinal Numbers
2nd
257th
23rd
Pangram Grep
9th
62nd
Pascal’s Triangle
39th
1st
Pernicious Numbers
1st
192nd
Pernicious Numbers (Long)
1st
80th
Prime Numbers
1st1st
465th
Prime Numbers (Long)
1st1st
203rd
Recamán
154th
ROT13
63rd
Scrambled Sort
4th
9th
7th
Smith Numbers
96th
Time Distance
193rd
Transpose Sentence
119th
Van Eck Sequence
130th
√2
105th
𝑒
9th7th
5th
5th13th
122nd
22nd