Q: Is 671,488 a Prime Number?
A: No, 671,488 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 671488 can be evenly divided by 1 2 4 8 16 32 43 61 64 86 122 128 172 244 256 344 488 688 976 1,376 1,952 2,623 2,752 3,904 5,246 5,504 7,808 10,492 11,008 15,616 20,984 41,968 83,936 167,872 335,744 and 671,488, with no remainder.
Since 671,488 cannot be divided by just 1 and 671,488, it is not a prime number.