Q: Is 402,742 a Prime Number?
A: No, 402,742 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 402742 can be evenly divided by 1 2 79 158 2,549 5,098 201,371 and 402,742, with no remainder.
Since 402,742 cannot be divided by just 1 and 402,742, it is not a prime number.