1 x 72
2 x 36
3 x 24
4 x 18
6 x 12
8 x 9
The least common multiple of 18 and 72 is 72. Since 18 is a factor of 72, 72 is automatically the LCM of the pair.
(72,1)(36,2)(24,3)(18,4)(12,6)(9,8)
56 and 72
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
Try it out! Divide 72 by 48, for example on a calculator. If you get a whole number, it is; otherwise it's not.
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
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
8 is the GCF of 56 and 72.
The highest factor of 72 is 72.
72 is not a factor of 18; 18 is a factor of 72.
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