Q: Is 642,988 a Prime Number?
A: No, 642,988 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 642988 can be evenly divided by 1 2 4 23 29 46 58 92 116 241 482 667 964 1,334 2,668 5,543 6,989 11,086 13,978 22,172 27,956 160,747 321,494 and 642,988, with no remainder.
Since 642,988 cannot be divided by just 1 and 642,988, it is not a prime number.