Q: Is 1,005,428 a Prime Number?
A: No, 1,005,428 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 1005428 can be evenly divided by 1 2 4 157 314 628 1,601 3,202 6,404 251,357 502,714 and 1,005,428, with no remainder.
Since 1,005,428 cannot be divided by just 1 and 1,005,428, it is not a prime number.