Abundant Numbers
4th
51st
Abundant Numbers (Long)
4th
28th
Arithmetic Numbers
23rd
ASCII Table
2nd
156th
Card Number Validation
77th
Catalan Numbers
14th8th
8th
20th
1st
24th
Collatz
7th
3rd
138th
Day of Week
4th
1st
1st
7th14th
1st
22nd
Divisors
52nd19th
1st
38th41st25th
1st
1st
Evil Numbers (Long)
3rd
20th33rd
174th
Factorial Factorisation
25th
Farey Sequence
127th
Fibonacci
13th37th12th1st1st25th22nd1st13th1st
34th28th41st
1st72nd1st21st62nd64th
59th
Fractions
3rd
2nd
14th
1st
1st
Happy Numbers
138th
Happy Numbers (Long)
31st
Inventory Sequence
62nd
ISBN
6th
Leap Years
10th
17th
52nd
Look and Say
3rd
3rd4th
16th
1st31st59th
9th
Medal Tally
5th
102nd
Niven Numbers (Long)
3rd
26th
38th
Number Spiral
163rd
Odious Numbers
1st
151st
Odious Numbers (Long)
3rd
1st31st
107th
Ordinal Numbers
2nd
251st
23rd
Pangram Grep
9th
10th
59th
Pascal’s Triangle
37th
1st
Pernicious Numbers
1st
181st
Pernicious Numbers (Long)
1st
70th
Prime Numbers
1st1st
451st
Prime Numbers (Long)
1st1st
194th
Recamán
145th
ROT13
57th
Scrambled Sort
4th
9th
6th
Smith Numbers
91st
Time Distance
186th
Transpose Sentence
113th
Van Eck Sequence
123rd
√2
100th
𝑒
9th7th
5th
5th11th
114th
22nd