Q: Is 5,136,421 a Prime Number?
A: No, 5,136,421 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 5136421 can be evenly divided by 1 31 67 2,077 2,473 76,663 165,691 and 5,136,421, with no remainder.
Since 5,136,421 cannot be divided by just 1 and 5,136,421, it is not a prime number.