Q: Is 1,245,550 a Prime Number?
A: No, 1,245,550 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 1245550 can be evenly divided by 1 2 5 10 25 29 50 58 145 290 725 859 1,450 1,718 4,295 8,590 21,475 24,911 42,950 49,822 124,555 249,110 622,775 and 1,245,550, with no remainder.
Since 1,245,550 cannot be divided by just 1 and 1,245,550, it is not a prime number.