Q: Is 5,561,421 a Prime Number?
A: No, 5,561,421 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 5561421 can be evenly divided by 1 3 1,853,807 and 5,561,421, with no remainder.
Since 5,561,421 cannot be divided by just 1 and 5,561,421, it is not a prime number.