Find LCM by Division
(a) 20, 25
(b)
(e) 26, 39, 52
(f) 7
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Answer:
a) LCM(20, 25) = 100
Prime factorization of the numbers:
20 = 2 × 2 × 5
25 = 5 × 5
LCM(20, 25)
= 2 × 2 × 5 × 5
= 100
b) LCM(26, 39, 52) = 156
Prime factorization of the numbers:
26 = 2 × 13
39 = 3 × 13
52 = 2 × 2 × 13
LCM(26, 39, 52)
= 2 × 2 × 3 × 13
= 156
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