Separate the number into prime factors. Then it should be easy to get ALL the factors, simply by combining different prime factors.
639 213,3 71,3,3
639 213,3 71,3,3
639
Yes. Factor pairs are always repeated across pairs since factor pairs are certain kinds of pairs.
Sixteen factor pairs.
The factor pairs of 28 are :28,114,27,4
the factor pairs are 1x35 & 5x7
The factor pairs of 27 are 1x27 and 3x9.
The factor pairs of 57 are 3x19 and 1x57
There are 10 factor pairs for 5,000:5000,12500,21250,41000,5625,8500,10250,20200,25125,40100,50
its a factor with two pairs of the same number
Mathematicians call them "factor pairs."