Question

Find the LCM of the following numbers by using prime factorisation method. a) 36,45 b) 18,20,30 c) 15,18,24 d) 25,35,45 e) 60,75,80,90​

Answer 1

Answer:

A.180

B. 180

c.360

d.1575

e.3600

Step-by-step explanation:

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Answer 2

Answer:

a)180

b)180

c)360

d)1575

e)1200

Step-by-step explanation:

first, find the common prime factors of numbers given. their product will be their LCM.

a) 3 x 3 x 2 x 2 x 5 = 180

b) 2 x 2 x 3 x 3 x 5 = 180

c) 3² x 2³ x 5

d) 5² x 7 x 3² = 1575

e) 5² x 3² x 2⁴ = 1200