Find the odd man out. 1, 4, 9, 16, 23, 25, 36

[Dersnotu]

Find the odd man out. 1, 4, 9, 16, 23, 25, 36

[Dersnotu]

Answer:

1=1×1
4=2×2
9=3×3
16=4×4
25=5×5
36=6×6
Hence, the odd man in the series is 23.