Q: Is 321,642 a Prime Number?
A: No, 321,642 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 321642 can be evenly divided by 1 2 3 6 9 18 107 167 214 321 334 501 642 963 1,002 1,503 1,926 3,006 17,869 35,738 53,607 107,214 160,821 and 321,642, with no remainder.
Since 321,642 cannot be divided by just 1 and 321,642, it is not a prime number.