allery16, 72 ਅਤੇ 28 ਦਾ HCF ਕੀ ਹੈ?
A3
B4
C2
D1
Answer & Solution
Correct answer: B. 4
1. 16 = 2^4, 72 = 2^3 x 3^2, 28 = 2^2 x 7. 2। ਸਾਂਝਾ ਪ੍ਰਧਾਨ ਗੁਣਕ 2 ਹੈ, ਸਭ ਤੋਂ ਘੱਟ ਪਾਵਰ 2^2 = 4. 3। ਇਸ ਲਈ HCF = 4। _ਸਰੋਤ: RRB ਗਰੁੱਪ D CEN-02/2018 PYQ, Q.25._
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