Q: Is 1,021,428 a Prime Number?
A: No, 1,021,428 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 1021428 can be evenly divided by 1 2 3 4 6 9 12 17 18 34 36 51 68 102 153 204 306 612 1,669 3,338 5,007 6,676 10,014 15,021 20,028 28,373 30,042 56,746 60,084 85,119 113,492 170,238 255,357 340,476 510,714 and 1,021,428, with no remainder.
Since 1,021,428 cannot be divided by just 1 and 1,021,428, it is not a prime number.