Lcm using prime factorisation 21,36,40,126

Answers (1)

By prime factorization method

21=3x7

36 = 2x2x3x3

40 = 2x2x2x5

126 = 2x3x3x7

LCM(21,36,40,126) = 2x2x2x3x3x5x7 = 2520

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