Q: Is 3,720,423 a Prime Number?
A: No, 3,720,423 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 3720423 can be evenly divided by 1 3 7 21 49 147 25,309 75,927 177,163 531,489 1,240,141 and 3,720,423, with no remainder.
Since 3,720,423 cannot be divided by just 1 and 3,720,423, it is not a prime number.