0
Anonymous
The GCF is 1.
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' 1 ' is their only c.f.
53
hcf is 100 lcm is 4000 500 = 22 x 53 800 = 25 x 52 hcf = 22 x 52 = 100 lcm = 25 x 53 = 4000
37, 41, 47, 53, yes. 35, 39, no.
(21+53)/2 = 37
90-37 = 53 degrees.