Q: Is 2,439,921 a Prime Number?
A: No, 2,439,921 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 2439921 can be evenly divided by 1 3 11 33 107 321 691 1,177 2,073 3,531 7,601 22,803 73,937 221,811 813,307 and 2,439,921, with no remainder.
Since 2,439,921 cannot be divided by just 1 and 2,439,921, it is not a prime number.