Q: Is 1,427,216 a Prime Number?
A: No, 1,427,216 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 1427216 can be evenly divided by 1 2 4 7 8 14 16 28 56 112 12,743 25,486 50,972 89,201 101,944 178,402 203,888 356,804 713,608 and 1,427,216, with no remainder.
Since 1,427,216 cannot be divided by just 1 and 1,427,216, it is not a prime number.