Q: Is 2,193,216 a Prime Number?
A: No, 2,193,216 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 2193216 can be evenly divided by 1 2 3 4 6 8 12 16 24 32 48 64 96 192 11,423 22,846 34,269 45,692 68,538 91,384 137,076 182,768 274,152 365,536 548,304 731,072 1,096,608 and 2,193,216, with no remainder.
Since 2,193,216 cannot be divided by just 1 and 2,193,216, it is not a prime number.