Q: Is 642,946 a Prime Number?
A: No, 642,946 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 642946 can be evenly divided by 1 2 563 571 1,126 1,142 321,473 and 642,946, with no remainder.
Since 642,946 cannot be divided by just 1 and 642,946, it is not a prime number.