Q: Is 1,328,607 a Prime Number?
A: No, 1,328,607 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 1328607 can be evenly divided by 1 3 7 9 21 63 21,089 63,267 147,623 189,801 442,869 and 1,328,607, with no remainder.
Since 1,328,607 cannot be divided by just 1 and 1,328,607, it is not a prime number.