(60,1)(30,2)(20,3)(15,4)(12,5)(10,6)
(100,1)(50,2)(25,4)(20,5)(10,10)
60, 72, 84, 90 and 96 have 6 factor pairs.
All of the composite numbers less than 100 have factor pairs.
The only single things that can be pairs are pants, scissors and glasses. The number 60 can be broken down into factor pairs, but is not a factor pair by itself.
80 has 5 factor pairs.
The factor pairs for 60 are:factor pair = 60,1factor pair = 30,2factor pair = 20,3factor pair = 15,4factor pair = 12,5factor pair = 10,6
80 has 5 factor pairs.
(1,100) (10,10)
40
60 has 6 factor pairs.
100 and 7
gcf(60, 100) = 20.
Since one dollar is one hundred pennies, the multiplication sentences for 100 would be the same in both cases.