Question

Find the LCM of 75 115 255 by the process of sub division method

Answer 1

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Find the prime factorization of 75

75 = 3 × 5 × 5

Find the prime factorization of 115

115 = 5 × 23

Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:

LCM = 3 × 5 × 5 × 23

LCM = 1725