Q: Is 1,321,564 a Prime Number?
A: No, 1,321,564 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 1321564 can be evenly divided by 1 2 4 19 38 76 17,389 34,778 69,556 330,391 660,782 and 1,321,564, with no remainder.
Since 1,321,564 cannot be divided by just 1 and 1,321,564, it is not a prime number.