Factor means a number times another numbers equals a larger number. Since 7 can be called "a number" and 168 is the "larger number" then the "another number" would be something the multiplys by 7 to equal 168. That number would be 24
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Yes, 24 is the greatest common factor of 120 and 168.24 x 5 = 12024 x 7 = 168
28 is a factor of 168 {28 x 6 = 168}, so the LCM is 168
It is: 168/7 = 24
hcf(90, 168, 192) = 2 90 = 2 x 3² x 5 168 = 2³ x 3 x 7 182 = 2 x 7 x 13 hcf = 2