Q: Is 1,087,443 a Prime Number?
A: No, 1,087,443 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 1087443 can be evenly divided by 1 3 7 9 21 41 63 123 287 369 421 861 1,263 2,583 2,947 3,789 8,841 17,261 26,523 51,783 120,827 155,349 362,481 and 1,087,443, with no remainder.
Since 1,087,443 cannot be divided by just 1 and 1,087,443, it is not a prime number.