If the product of two numbers is 560 and greatest common factor is 4. Then what is the least common multiple?

A 70
B 140
C 120
D 45

Correct Answer: 140

আমরা জানি, গ.সা.গু x ল.সা.গু = সংখ্যাদ্বয়ের গুণফল ⇒ 4 × ল.সা.গু = 560 ⇒ ল.সা.গু = 140
Bissoy MCQ
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