Q: Is 398,742 a Prime Number?
A: No, 398,742 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 398742 can be evenly divided by 1 2 3 6 66,457 132,914 199,371 and 398,742, with no remainder.
Since 398,742 cannot be divided by just 1 and 398,742, it is not a prime number.