allery14, 42 ਅਤੇ 77 ਦਾ ਸਭ ਤੋਂ ਘੱਟ ਆਮ ਗੁਣਜ (LCM) ਹੈ:
A308
B462
C154
D168
Answer & Solution
Correct answer: B. 462
1। ਪ੍ਰਾਈਮ ਫੈਕਟਰਾਈਜ਼: 14 = 2×7, 42 = 2×3×7, 77 = 7×11। 2। LCM ਹਰੇਕ ਪ੍ਰਾਈਮ ਦੀ ਸਭ ਤੋਂ ਵੱਧ ਸ਼ਕਤੀ ਲੈਂਦਾ ਹੈ: 2 × 3 × 7 × 11। 3। = 462. _ਸਰੋਤ: RRB ਗਰੁੱਪ D CEN-02/2018 PYQ, Q.8._
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