Q: Is 4,145,321 a Prime Number?
A: No, 4,145,321 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 4145321 can be evenly divided by 1 1,741 2,381 and 4,145,321, with no remainder.
Since 4,145,321 cannot be divided by just 1 and 4,145,321, it is not a prime number.