Q: Is 715,420 a Prime Number?
A: No, 715,420 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 715420 can be evenly divided by 1 2 4 5 10 20 35,771 71,542 143,084 178,855 357,710 and 715,420, with no remainder.
Since 715,420 cannot be divided by just 1 and 715,420, it is not a prime number.