Q: Is 609,665 a Prime Number?
A: No, 609,665 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 609665 can be evenly divided by 1 5 7 35 17,419 87,095 121,933 and 609,665, with no remainder.
Since 609,665 cannot be divided by just 1 and 609,665, it is not a prime number.