Lcm by prime factors of 28 35 56 and 84
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Answer:
28-2²×7
28-2²×735-5×7
28-2²×735-5×756-2³×7
28-2²×735-5×756-2³×784-2²×3×7
28-2²×735-5×756-2³×784-2²×3×7LCM = 2³×7×3=168
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