Search any question & find its solution
Question:
Answered & Verified by Expert
$7^{2 n}+16 n-1(n \in N)$ is divisible by
Options:
Solution:
2748 Upvotes
Verified Answer
The correct answer is:
64
We have,
$7^{2 n}+16 n-1$
Put $n=1,$ we get
$\begin{aligned} 7^{2}+16-1 & \\ =& 49+15 \\ =& 64 \end{aligned}$
which is divisible by 64.
$7^{2 n}+16 n-1$
Put $n=1,$ we get
$\begin{aligned} 7^{2}+16-1 & \\ =& 49+15 \\ =& 64 \end{aligned}$
which is divisible by 64.
Looking for more such questions to practice?
Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.