Abundant Numbers
9th
129th
Abundant Numbers (Long)
5th
77th
Arithmetic Numbers
53rd
ASCII Table
4th
145th
Card Number Validation
75th
Catalan Numbers
13th7th
8th
19th
1st
22nd
Collatz
7th
3rd
164th
Day of Week
4th
7th
14th
57th
20th
Divisors
46th18th
1st
36th39th23rd1st
101st
Evil Numbers (Long)
4th
18th30th
153rd
Factorial Factorisation
38th
Farey Sequence
121st
Fibonacci
12th36th43rd1st1st23rd19th1st13th18th32nd27th36th1st65th1st19th58th58th
55th
Fractions
3rd
5th
13th
52nd
1st
ISBN
5th
Leap Years
11th
17th
45th
Look and Say
2nd
5th4th16th
π28th90th
14th
Medal Tally
4th
97th
Niven Numbers (Long)
3rd
25th
136th
Number Spiral
156th
Odious Numbers
1st
135th
Odious Numbers (Long)
5th
1st29th
91st
Ordinal Numbers
5th
20th
Pangram Grep
8th
10th
185th
Pascalβs Triangle
34th
35th
Pernicious Numbers
1st
173rd
Pernicious Numbers (Long)
3rd
68th
Prime Numbers
1st1st
464th
Prime Numbers (Long)
1st1st
228th
RecamΓ‘n
158th
Transpose Sentence
109th
Van Eck Sequence
120th
π
8th7th
5th
5th12th
114th
20th