Q: Is 15,408 a Prime Number?
A: No, 15,408 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 15408 can be evenly divided by 1 2 3 4 6 8 9 12 16 18 24 36 48 72 107 144 214 321 428 642 856 963 1,284 1,712 1,926 2,568 3,852 5,136 7,704 and 15,408, with no remainder.
Since 15,408 cannot be divided by just 1 and 15,408, it is not a prime number.