Q: Is 1,388,120 a Prime Number?
A: No, 1,388,120 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 1388120 can be evenly divided by 1 2 4 5 8 10 20 40 34,703 69,406 138,812 173,515 277,624 347,030 694,060 and 1,388,120, with no remainder.
Since 1,388,120 cannot be divided by just 1 and 1,388,120, it is not a prime number.