lcm of 15 20 28 and 35
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Step-by-step explanation:
Decompose all numbers into prime factors
2. Write all numbers as the product of its prime factors
Prime factors of 15 = 3 . 5
Prime factors of 20 = 22 . 5
Prime factors of 28 = 22 . 7
Prime factors of 45 = 32 . 5
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