Q: Is 1,321,872 a Prime Number?
A: No, 1,321,872 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 1321872 can be evenly divided by 1 2 3 4 6 8 12 16 24 48 27,539 55,078 82,617 110,156 165,234 220,312 330,468 440,624 660,936 and 1,321,872, with no remainder.
Since 1,321,872 cannot be divided by just 1 and 1,321,872, it is not a prime number.