Q: Is 1,375,275 a Prime Number?
A: No, 1,375,275 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 1375275 can be evenly divided by 1 3 5 11 15 25 33 55 75 165 275 825 1,667 5,001 8,335 18,337 25,005 41,675 55,011 91,685 125,025 275,055 458,425 and 1,375,275, with no remainder.
Since 1,375,275 cannot be divided by just 1 and 1,375,275, it is not a prime number.