Q: Is 397,970 a Prime Number?
A: No, 397,970 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 397970 can be evenly divided by 1 2 5 10 17 34 85 170 2,341 4,682 11,705 23,410 39,797 79,594 198,985 and 397,970, with no remainder.
Since 397,970 cannot be divided by just 1 and 397,970, it is not a prime number.