Abundant Numbers
3rd
47th
Abundant Numbers (Long)
3rd
26th
Arithmetic Numbers
21st
ASCII Table
6th
Catalan Numbers
12th7th
8th
19th
1st
22nd
Collatz
19th
114th
Day of Week
3rd
1st
14th
1st
18th
Divisors
44th17th
1st
35th39th23rd1st
1st
Evil Numbers (Long)
3rd
18th30th
233rd
Factorial Factorisation
23rd
Farey Sequence
112th
Fibonacci
12th36th8th1st1st23rd19th1st16th1st31st27th35th1st65th1st19th58th57th
54th
Fractions
2nd
2nd
13th
1st
1st
ISBN
5th
Leap Years
9th
17th
44th
Look and Say
2nd
1st4th16th
π28th47th
9th
Medal Tally
4th
Niven Numbers (Long)
6th
23rd
249th
Number Spiral
143rd
Odious Numbers
1st
Odious Numbers (Long)
3rd
1st29th
177th
Ordinal Numbers
2nd
20th
Pangram Grep
7th
16th
Pascalβs Triangle
34th
1st
Pernicious Numbers
1st
Pernicious Numbers (Long)
1st
Prime Numbers
1st1st
Prime Numbers (Long)
1st1st
RecamΓ‘n
127th
Transpose Sentence
94th
Van Eck Sequence
100th
π
7th7th
5th
5th10th
90th
22nd