Q: Is 1,257,508 a Prime Number?
A: No, 1,257,508 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 1257508 can be evenly divided by 1 2 4 7 14 28 97 194 388 463 679 926 1,358 1,852 2,716 3,241 6,482 12,964 44,911 89,822 179,644 314,377 628,754 and 1,257,508, with no remainder.
Since 1,257,508 cannot be divided by just 1 and 1,257,508, it is not a prime number.