find LCM using prime factorisation method. 20,35,60
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Answer:
Steps to find LCM
Find the prime factorization of 20
20 = 2 × 2 × 5
Find the prime factorization of 35
35 = 5 × 7
Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 2 × 2 × 5 × 7
LCM = 140
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Answer:
20 = 2×2×5
35 = 5×7
60 = 2×2×3×5
we get,
L. C. M. = 2×2×3×5×7
= 420
Step-by-step explanation:
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