Question

find the LCM of 28 and 35 by prime factorisation​

Answer 1

Answer:

LCM of 28 and 35, find the lowest common denominator (lcd) smallest multiple of two integers, calculate prime factors and ... 

Answer 2

$28 = 2 \times 2 \times 7 \\ 35 = 5 \times 7 \\ \\ lcm = 2\times 2\times \times 5 \times 7 = 140$

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