Q: Is 123,642 a Prime Number?
A: No, 123,642 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 123642 can be evenly divided by 1 2 3 6 9 18 6,869 13,738 20,607 41,214 61,821 and 123,642, with no remainder.
Since 123,642 cannot be divided by just 1 and 123,642, it is not a prime number.