Q: Is 6,637,421 a Prime Number?
A: No, 6,637,421 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 6637421 can be evenly divided by 1 7 887 1,069 6,209 7,483 948,203 and 6,637,421, with no remainder.
Since 6,637,421 cannot be divided by just 1 and 6,637,421, it is not a prime number.