Q: Is 671,994 a Prime Number?
A: No, 671,994 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 671994 can be evenly divided by 1 2 3 6 9 18 37 74 111 222 333 666 1,009 2,018 3,027 6,054 9,081 18,162 37,333 74,666 111,999 223,998 335,997 and 671,994, with no remainder.
Since 671,994 cannot be divided by just 1 and 671,994, it is not a prime number.