Q: Is 397,842 a Prime Number?
A: No, 397,842 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 397842 can be evenly divided by 1 2 3 6 61 122 183 366 1,087 2,174 3,261 6,522 66,307 132,614 198,921 and 397,842, with no remainder.
Since 397,842 cannot be divided by just 1 and 397,842, it is not a prime number.