Let \(k = 19^{19} + 23^{23}.\) What is the units digit of \(k?\)

BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

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

by VJesus12 » Fri May 08, 2020 8:01 am

Timer

00:00

Let \(k = 19^{19} + 23^{23}.\) What is the units digit of \(k?\)

A. 0

B. 2

C. 4

D. 5

E. 6

[spoiler]OA=E[/spoiler]

Source: Veritas Prep

Source: Beat The GMAT — Problem Solving | Fri May 08, 2020 8:01 am

• Page 1 of 1