The largest prime factor of (2⁴)²-1 is
A 3
B 5
C 17
D 19
Solution
Correct Answer: Option C
(2⁴)²-1
=(2⁴)²-1²
=(2⁴ +1) (2⁴ -1)
=(16+1)(16-1)
=17×15
=17× 5×3
বৃহত্তম সংখ্যা 17
=(2⁴)²-1²
=(2⁴ +1) (2⁴ -1)
=(16+1)(16-1)
=17×15
=17× 5×3
বৃহত্তম সংখ্যা 17
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