Q: Is 5,642,423 a Prime Number?
A: No, 5,642,423 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 5642423 can be evenly divided by 1 83 157 433 13,031 35,939 67,981 and 5,642,423, with no remainder.
Since 5,642,423 cannot be divided by just 1 and 5,642,423, it is not a prime number.