Q: Is 671,541 a Prime Number?
A: No, 671,541 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 671541 can be evenly divided by 1 3 13 39 67 201 257 771 871 2,613 3,341 10,023 17,219 51,657 223,847 and 671,541, with no remainder.
Since 671,541 cannot be divided by just 1 and 671,541, it is not a prime number.