That happens when one of the numbers is a factor of the other.
Numbers with more than one factor pair are composite numbers.
They are: 100-16 = 84
No, try 84.
84 factor is
Those numbers are called factors. A pair of those is called a factor pair.
Prime numbers have one factor pair.
2,2,3,7
They are: 4 and 1
The highest common factor of the numbers 28, 84 and 91 is 7.
The greatest common factor of the numbers 210 and 84 is 42.
The greatest common factor of the numbers 35, 84 and 91 is 7.