Q: Is 725,408 a Prime Number?
A: No, 725,408 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 725408 can be evenly divided by 1 2 4 8 16 32 22,669 45,338 90,676 181,352 362,704 and 725,408, with no remainder.
Since 725,408 cannot be divided by just 1 and 725,408, it is not a prime number.