Q: Is 1,143,249 a Prime Number?
A: No, 1,143,249 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 1143249 can be evenly divided by 1 3 19 31 57 93 589 647 1,767 1,941 12,293 20,057 36,879 60,171 381,083 and 1,143,249, with no remainder.
Since 1,143,249 cannot be divided by just 1 and 1,143,249, it is not a prime number.