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দুটি সংখ্যার HCF 9। এদের মধ্যে কোনটি তাদের LCM হতে পারে না?

A72
B80
C90
D54
Answer & Solution
Correct answer: B. 80
LCM সর্বদা HCF-এর একটি গুণিতক হয়, এবং 80 সংখ্যাটি 9-এর গুণিতক নয়।
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