Q: Is 398,242 a Prime Number?
A: No, 398,242 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 398242 can be evenly divided by 1 2 13 17 26 34 53 106 221 289 442 578 689 901 1,378 1,802 3,757 7,514 11,713 15,317 23,426 30,634 199,121 and 398,242, with no remainder.
Since 398,242 cannot be divided by just 1 and 398,242, it is not a prime number.