Q: Is 1,138,125 a Prime Number?
A: No, 1,138,125 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 1138125 can be evenly divided by 1 3 5 15 25 75 125 375 607 625 1,821 1,875 3,035 9,105 15,175 45,525 75,875 227,625 379,375 and 1,138,125, with no remainder.
Since 1,138,125 cannot be divided by just 1 and 1,138,125, it is not a prime number.