Q: Is 355,408 a Prime Number?
A: No, 355,408 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 355408 can be evenly divided by 1 2 4 8 16 97 194 229 388 458 776 916 1,552 1,832 3,664 22,213 44,426 88,852 177,704 and 355,408, with no remainder.
Since 355,408 cannot be divided by just 1 and 355,408, it is not a prime number.