Q: Is 402,604 a Prime Number?
A: No, 402,604 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 402604 can be evenly divided by 1 2 4 251 401 502 802 1,004 1,604 100,651 201,302 and 402,604, with no remainder.
Since 402,604 cannot be divided by just 1 and 402,604, it is not a prime number.