Q: Is 387,478 a Prime Number?
A: No, 387,478 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 387478 can be evenly divided by 1 2 7 13 14 26 91 182 2,129 4,258 14,903 27,677 29,806 55,354 193,739 and 387,478, with no remainder.
Since 387,478 cannot be divided by just 1 and 387,478, it is not a prime number.