Q: Is 2,121,615 a Prime Number?
A: No, 2,121,615 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 2121615 can be evenly divided by 1 3 5 9 15 45 47,147 141,441 235,735 424,323 707,205 and 2,121,615, with no remainder.
Since 2,121,615 cannot be divided by just 1 and 2,121,615, it is not a prime number.