Q: Is 642,524 a Prime Number?
A: No, 642,524 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 642524 can be evenly divided by 1 2 4 29 58 116 191 382 764 841 1,682 3,364 5,539 11,078 22,156 160,631 321,262 and 642,524, with no remainder.
Since 642,524 cannot be divided by just 1 and 642,524, it is not a prime number.