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30 2 x 15 = 30 30 2 x 15 = 30
2/5 x 75 = 30= 75 x 2/5 = 30
hcf(14, 30) = 2 lcm(14, 30) = 210 14 = 2 x 7 30 = 2 x 3 x 5 hcf = 2 lcm = 2 x 3 x 5 x 7 = 210
The prime factors for 66, 30, 60, and 48 are: 66 = 2 x 3 x 11 30 = 2 x 3 x 5 60 = 2 x 2 x 3 x 5 48 = 2 x 2 x 2 x 2 x 3 The factors that all numbers have in common are 2 x 3, so 6 is the GCF of 66, 30, 60, and 48.
30 = 1 x 30, 2 x 15, 3 x 10, 5 x 6