Q: Is 666,724 a Prime Number?
A: No, 666,724 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 666724 can be evenly divided by 1 2 4 23 46 92 7,247 14,494 28,988 166,681 333,362 and 666,724, with no remainder.
Since 666,724 cannot be divided by just 1 and 666,724, it is not a prime number.