Q: Is 1,321,355 a Prime Number?
A: No, 1,321,355 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 1321355 can be evenly divided by 1 5 7 19 35 95 133 665 1,987 9,935 13,909 37,753 69,545 188,765 264,271 and 1,321,355, with no remainder.
Since 1,321,355 cannot be divided by just 1 and 1,321,355, it is not a prime number.