Q: Is 671,211 a Prime Number?
A: No, 671,211 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 671211 can be evenly divided by 1 3 9 17 41 51 107 123 153 321 369 697 963 1,819 2,091 4,387 5,457 6,273 13,161 16,371 39,483 74,579 223,737 and 671,211, with no remainder.
Since 671,211 cannot be divided by just 1 and 671,211, it is not a prime number.