Q: Is 1,522,143 a Prime Number?
A: No, 1,522,143 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 1522143 can be evenly divided by 1 3 7 9 21 37 63 111 259 333 653 777 1,959 2,331 4,571 5,877 13,713 24,161 41,139 72,483 169,127 217,449 507,381 and 1,522,143, with no remainder.
Since 1,522,143 cannot be divided by just 1 and 1,522,143, it is not a prime number.