Q: Is 403,607 a Prime Number?
A: Yes, 403,607 is a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 403607 can be evenly divided by 1 and 403,607, with no remainder.
Since 403,607 can be divided by just 1 and 403,607, it is a prime number.