Q: Is 1,397,672 a Prime Number?
A: No, 1,397,672 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 1397672 can be evenly divided by 1 2 4 8 17 34 43 68 86 136 172 239 344 478 731 956 1,462 1,912 2,924 4,063 5,848 8,126 10,277 16,252 20,554 32,504 41,108 82,216 174,709 349,418 698,836 and 1,397,672, with no remainder.
Since 1,397,672 cannot be divided by just 1 and 1,397,672, it is not a prime number.