Q: Is 6,421,542 a Prime Number?
A: No, 6,421,542 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 6421542 can be evenly divided by 1 2 3 6 1,070,257 2,140,514 3,210,771 and 6,421,542, with no remainder.
Since 6,421,542 cannot be divided by just 1 and 6,421,542, it is not a prime number.