Subject
Govt.Jobs
Topic
সিকিউরিটি প্রিন্টিং কর্পোরেশন লি. সহকারি ব্যবস্থাপক (সাধারণ)-২৬.১১,২০২১
What is the greatest prime factor of (2⁴)²-1?
What is the greatest prime factor of (2⁴)²-1?
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3খ)
5গ)
11ঘ)
17Explanation
(2⁴) ²-1 =(2⁴+1)(2⁴-1) [a²-b²=(a+b)(a-b)] =(16+1) (16-1) =17×15 =17×5×3 So ,The greatest prime factor is 17Related questions
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