That depends on what the problem is.
21 and 84
factor pair = 110,1factor pair = 55,2factor pair = 22,5factor pair = 11,10
(3,11) is a factor pair of 33.
35 is a multiple of 7 7 and 1 are a factor pair of 7. 3 and 5 are a factor pair of 15
The factor pairs of 80 are:factor pair = 80,1factor pair = 40,2factor pair = 20,4factor pair = 16,5factor pair = 10,8
factor pair = 1512,1 factor pair = 756,2 factor pair = 504,3 factor pair = 378,4 factor pair = 252,6 factor pair = 216,7 factor pair = 189,8 factor pair = 168,9 factor pair = 126,12 factor pair = 108,14 factor pair = 84,18 factor pair = 72,21 factor pair = 63,24 factor pair = 56,27 factor pair = 54,28 factor pair = 42,36
21 and 84
framing
factor pair = 650,1 factor pair = 325,2 factor pair = 130,5 factor pair = 65,10 factor pair = 50,13 factor pair = 26,25
factor pair = 36,1 factor pair = 18,2 factor pair = 12,3 factor pair = 9,4 factor pair = 6,6
15.88 12.40 is just a pair of numbers, not a problem.
factor pair = 90,1 factor pair = 45,2 factor pair = 30,3 factor pair = 18,5 factor pair = 15,6 factor pair = 10,9 Doctor Chuck Mathdoc
4 is not a factor of 998
I factor because the problem I'm solving calls for it. It's the fastest and easiest way to solve for the GCF or LCM.
Multiplying each factor by powers of ten
Amendment 13,19 not 100 % sure
Amendment 13,19 not 100 % sure