संख्या 21600 के कितने गुणनखंड पूर्ण वर्ग हैं?

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  1. 15
  2. 12
  3. 10
  4. 6

Answer (Detailed Solution Below)

Option 2 : 12
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प्रयुक्त अवधारणा:

दी गई संख्या का गुणनखंड कीजिए और फिर समान संख्याओं के जोड़े बनाकर संभावित वर्ग गुणनखंड प्राप्त कीजिए 

गणना:

⇒ 21600 = 22 × 22 × 2 × 32 × 3 × 52

21600 के गुणनखंड जो पूर्ण वर्ग हैं, 

⇒ 1

⇒ 2= 4,

⇒ 32 = 9,

⇒ 22 × 22 = 16

⇒ 5= 25

⇒ 2× 32 = 36

⇒ 22 × 52 = 100

⇒ 2× 22 × 32 = 144

⇒ 32 × 52 = 225

⇒ 2× 22 × 52 = 400

⇒ 32 × 52 × 22 = 900

⇒ 32 × 52 × 24 = 3600

21600 के गुणनखंडों की संख्या जिनका पूर्ण वर्ग = 12

 संख्या 21600 के पूर्ण वर्ग गुणनखंड 12 हैं। 

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