Q: Is 1,543,743 a Prime Number?
A: No, 1,543,743 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 1543743 can be evenly divided by 1 3 9 43 129 387 3,989 11,967 35,901 171,527 514,581 and 1,543,743, with no remainder.
Since 1,543,743 cannot be divided by just 1 and 1,543,743, it is not a prime number.