Q: Is 3,221,415 a Prime Number?
A: No, 3,221,415 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 3221415 can be evenly divided by 1 3 5 9 15 17 45 51 85 153 255 765 4,211 12,633 21,055 37,899 63,165 71,587 189,495 214,761 357,935 644,283 1,073,805 and 3,221,415, with no remainder.
Since 3,221,415 cannot be divided by just 1 and 3,221,415, it is not a prime number.