Q: Is 1,421,328 a Prime Number?
A: No, 1,421,328 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 1421328 can be evenly divided by 1 2 3 4 6 8 12 16 24 48 29,611 59,222 88,833 118,444 177,666 236,888 355,332 473,776 710,664 and 1,421,328, with no remainder.
Since 1,421,328 cannot be divided by just 1 and 1,421,328, it is not a prime number.