Q: Is 8,342,721 a Prime Number?
A: No, 8,342,721 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 8342721 can be evenly divided by 1 3 9 23 41 69 123 207 369 943 983 2,829 2,949 8,487 8,847 22,609 40,303 67,827 120,909 203,481 362,727 926,969 2,780,907 and 8,342,721, with no remainder.
Since 8,342,721 cannot be divided by just 1 and 8,342,721, it is not a prime number.