Q: Is 1,427,428 a Prime Number?
A: No, 1,427,428 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 1427428 can be evenly divided by 1 2 4 43 86 172 193 386 772 1,849 3,698 7,396 8,299 16,598 33,196 356,857 713,714 and 1,427,428, with no remainder.
Since 1,427,428 cannot be divided by just 1 and 1,427,428, it is not a prime number.