It is: 648
The GCF is 45.
144
72 144 216 288 360 432 504 576 648 720 792 864 72, 144, 216, 288, 360, 432, 504, 576, 648, 720 . . .
It is: 10
The HCF is 1, the LCM is 720
560/720 = 7/9 by dividing the numerator and the denominator by their hcf which is 80
The HCF of both numbers is 20
The answer is 36.
144 216 288 360 432 504 576 648 720 and so on ...
72 144 216 288 360 432 504 576 648 720 792 864
72, 144, 216, 288, 360, 432, 504, 576, 648, 720