Q: Is 397,242 a Prime Number?
A: No, 397,242 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 397242 can be evenly divided by 1 2 3 6 9 18 29 58 87 174 261 522 761 1,522 2,283 4,566 6,849 13,698 22,069 44,138 66,207 132,414 198,621 and 397,242, with no remainder.
Since 397,242 cannot be divided by just 1 and 397,242, it is not a prime number.