Q: Is 1,421,772 a Prime Number?
A: No, 1,421,772 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 1421772 can be evenly divided by 1 2 3 4 6 11 12 22 33 44 66 132 10,771 21,542 32,313 43,084 64,626 118,481 129,252 236,962 355,443 473,924 710,886 and 1,421,772, with no remainder.
Since 1,421,772 cannot be divided by just 1 and 1,421,772, it is not a prime number.