If \(k\) is a positive integer, what is the remainder when \(13^{4k+2}+8\) is divided by \(10?\)

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VJesus12: Legendary Member; Posts: 2276; Joined: Sat Oct 14, 2017 6:10 am; Followed by:3 members

If \(k\) is a positive integer, what is the remainder when \(13^{4k+2}+8\) is divided by \(10?\)

by VJesus12 » Thu Mar 18, 2021 12:43 pm

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If \(k\) is a positive integer, what is the remainder when \(13^{4k+2}+8\) is divided by \(10?\)

A) 7
B) 4
C) 2
D) 1
E) 0

Answer: A

Source: GMAT Prep

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Source: Beat The GMAT — Problem Solving | Thu Mar 18, 2021 12:43 pm

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