Q: Is 397,660 a Prime Number?
A: No, 397,660 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 397660 can be evenly divided by 1 2 4 5 10 20 59 118 236 295 337 590 674 1,180 1,348 1,685 3,370 6,740 19,883 39,766 79,532 99,415 198,830 and 397,660, with no remainder.
Since 397,660 cannot be divided by just 1 and 397,660, it is not a prime number.