Q: Is 729,428 a Prime Number?
A: No, 729,428 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 729428 can be evenly divided by 1 2 4 7 14 28 109 218 239 436 478 763 956 1,526 1,673 3,052 3,346 6,692 26,051 52,102 104,204 182,357 364,714 and 729,428, with no remainder.
Since 729,428 cannot be divided by just 1 and 729,428, it is not a prime number.