Q: Is 671,916 a Prime Number?
A: No, 671,916 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 671916 can be evenly divided by 1 2 3 4 6 7 12 14 19 21 28 38 42 57 76 84 114 133 228 266 399 421 532 798 842 1,263 1,596 1,684 2,526 2,947 5,052 5,894 7,999 8,841 11,788 15,998 17,682 23,997 31,996 35,364 47,994 55,993 95,988 111,986 167,979 223,972 335,958 and 671,916, with no remainder.
Since 671,916 cannot be divided by just 1 and 671,916, it is not a prime number.