Q: Is 1,421,512 a Prime Number?
A: No, 1,421,512 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 1421512 can be evenly divided by 1 2 4 8 137 274 548 1,096 1,297 2,594 5,188 10,376 177,689 355,378 710,756 and 1,421,512, with no remainder.
Since 1,421,512 cannot be divided by just 1 and 1,421,512, it is not a prime number.