Q: Is 1,663,742 a Prime Number?
A: No, 1,663,742 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 1663742 can be evenly divided by 1 2 37 74 22,483 44,966 831,871 and 1,663,742, with no remainder.
Since 1,663,742 cannot be divided by just 1 and 1,663,742, it is not a prime number.