allery14, 42 এবং 77-এর লঘিষ্ঠ সাধারণ গুণিতক (LCM) হলো:
A308
B462
C154
D168
Answer & Solution
Correct answer: B. 462
1. মৌলিক উৎপাদকে বিশ্লেষণ করি: 14 = 2×7, 42 = 2×3×7, 77 = 7×11।
2. LCM-তে প্রতিটি মৌলিক উৎপাদকের সর্বোচ্চ ঘাত নেওয়া হয়: 2 × 3 × 7 × 11।
3. = 462।
_Source: RRB Group D CEN-02/2018 PYQ, Q.8._
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