Q: Is 670,719 a Prime Number?
A: No, 670,719 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 670719 can be evenly divided by 1 3 7 19 21 41 57 123 133 287 399 779 861 1,681 2,337 5,043 5,453 11,767 16,359 31,939 35,301 95,817 223,573 and 670,719, with no remainder.
Since 670,719 cannot be divided by just 1 and 670,719, it is not a prime number.