Q: Is 671,139 a Composite Number?
A: Yes, 671,139 is a composite number.
The number 671,139 can be evenly divided by 1 3 7 9 21 27 53 63 67 159 189 201 371 469 477 603 1,113 1,407 1,431 1,809 3,339 3,551 4,221 10,017 10,653 12,663 24,857 31,959 74,571 95,877 223,713 and 671,139, with no remainder.
Since 671,139 cannot be divided by just 1 and 671,139, it is a composite number.