Q: Is 378,729 a Prime Number?
A: No, 378,729 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 378729 can be evenly divided by 1 3 9 13 27 39 83 117 169 249 351 507 747 1,079 1,521 2,241 3,237 4,563 9,711 14,027 29,133 42,081 126,243 and 378,729, with no remainder.
Since 378,729 cannot be divided by just 1 and 378,729, it is not a prime number.