SAT Math Practice Question #23181 - SATify | SATify

Home Practice Exams Features Pricing Quick Start Guide About

Loading...

SAT Math Practice Question #23181 - SATify | SATify

#23181

number theory

medium

75 sec

What is the units digit of $1 3^{25} + 2 7^{19}$ ?

A.

0

B.

1

C.

6

D.

8

E.

9