Q: Is 1,428 a Prime Number?
A: No, 1,428 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 1428 can be evenly divided by 1 2 3 4 6 7 12 14 17 21 28 34 42 51 68 84 102 119 204 238 357 476 714 and 1,428, with no remainder.
Since 1,428 cannot be divided by just 1 and 1,428, it is not a prime number.