Q: Is 1,321,749 a Prime Number?
A: No, 1,321,749 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 1321749 can be evenly divided by 1 3 9 11 13 33 39 79 99 117 143 169 237 429 507 711 869 1,027 1,287 1,521 1,859 2,607 3,081 5,577 7,821 9,243 11,297 13,351 16,731 33,891 40,053 101,673 120,159 146,861 440,583 and 1,321,749, with no remainder.
Since 1,321,749 cannot be divided by just 1 and 1,321,749, it is not a prime number.