Q: Is 1,321,722 a Prime Number?
A: No, 1,321,722 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 1321722 can be evenly divided by 1 2 3 6 9 18 97 194 291 582 757 873 1,514 1,746 2,271 4,542 6,813 13,626 73,429 146,858 220,287 440,574 660,861 and 1,321,722, with no remainder.
Since 1,321,722 cannot be divided by just 1 and 1,321,722, it is not a prime number.