Q: Is 2,167,216 a Prime Number?
A: No, 2,167,216 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 2167216 can be evenly divided by 1 2 4 8 16 19 38 76 152 304 7,129 14,258 28,516 57,032 114,064 135,451 270,902 541,804 1,083,608 and 2,167,216, with no remainder.
Since 2,167,216 cannot be divided by just 1 and 2,167,216, it is not a prime number.