कौन-सी अभाज्य संख्या नहीं है?

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Kerala PSC Civil Excise Officier Women PYP 2018
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  1. 61
  2. 47
  3. 51
  4. 59

Answer (Detailed Solution Below)

Option 3 : 51
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प्रयुक्त सूत्र:

एक अभाज्य संख्या 1 से बड़ी एक प्राकृतिक संख्या होती है जिसके 1 और स्वयं के अलावा कोई अन्य धनात्मक भाजक नहीं होते हैं।

गणना:

61: भाजक: 1, 61 (अभाज्य)

47: भाजक: 1, 47 (अभाज्य)

51: भाजक: 1, 3, 17, 51 (अभाज्य नहीं)

59: भाजक: 1, 59 (अभाज्य)

⇒ 51 अभाज्य संख्या नहीं है।

∴ सही उत्तर विकल्प 3 है।

Latest Kerala PSC Civil Excise Officer Updates

Last updated on Apr 10, 2025

-> The Kerala PSC Civil Excise Officer Notification 2025 has bee released (Advt No. 743/2024). 

-> Interested candidates can apply online from 31st December 2024 to 29th January 2025.

-> The selection process for the Kerala PSC Civil Excise Officer Recruitment will include an endurance test, followed by physical efficiency test (PET), medical exam, and written test (if applicable).

-> Selected candidates will receive Kerala PSC Civil Excise Officer salary in pay-scale of Rs. 27900 – 63700.

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