It is being given that (232 + 1) is completely divisible by a whole number. Which of the following numbers is completely divisible by this number?
A. (216 + 1)
B. (216 - 1)
C. (7 x 223)
D. (296 + 1)
E. None of these
Answer: Option D
Solution(By Examveda Team)
Let 232 = x.Then,
(232 + 1) = (x + 1)
Let (x + 1) be completely divisible by the natural number N.
Then,
(296 + 1)
= [(232)3 + 1]
= (x3 + 1)
= (x + 1)(x2 - x + 1), which is completely divisible by N, since (x + 1) is divisible by N.
Related Questions on Number System
Three numbers are in ratio 1 : 2 : 3 and HCF is 12. The numbers are:
A. 12, 24, 36
B. 11, 22, 33
C. 12, 24, 32
D. 5, 10, 15
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