Find the odd man out from the following series: 2, 3, 5, 7, 11, 13, 17, 19, 21, 23,

M4maths Previous Puzzles

11 Jun 2019 Odd man out

Find the odd man out from the following series:
2, 3, 5, 7, 11, 13, 17, 19, 21, 23,

OPtion

1) 2
2) 3
3) 5
4) 7
5) 11
6) 13
7) 17
8) 19
9) 21
10) 23

Solution

Except 21 rest all prime numbers

Correct Option: 9 Best Solution (7)