Q: Is 1,421,539 a Prime Number?
A: No, 1,421,539 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 1421539 can be evenly divided by 1 7 49 67 433 469 3,031 3,283 21,217 29,011 203,077 and 1,421,539, with no remainder.
Since 1,421,539 cannot be divided by just 1 and 1,421,539, it is not a prime number.