Q: Is 1,642,742 a Prime Number?
A: No, 1,642,742 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 1642742 can be evenly divided by 1 2 421 842 1,951 3,902 821,371 and 1,642,742, with no remainder.
Since 1,642,742 cannot be divided by just 1 and 1,642,742, it is not a prime number.