Q: Is 1,521,142 a Prime Number?
A: No, 1,521,142 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 1521142 can be evenly divided by 1 2 7 14 179 358 607 1,214 1,253 2,506 4,249 8,498 108,653 217,306 760,571 and 1,521,142, with no remainder.
Since 1,521,142 cannot be divided by just 1 and 1,521,142, it is not a prime number.