Q: Is 3,720,123 a Prime Number?
A: No, 3,720,123 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 3720123 can be evenly divided by 1 3 9 11 33 53 99 159 477 583 709 1,749 2,127 5,247 6,381 7,799 23,397 37,577 70,191 112,731 338,193 413,347 1,240,041 and 3,720,123, with no remainder.
Since 3,720,123 cannot be divided by just 1 and 3,720,123, it is not a prime number.