Question

Q. 5^16+
+ 125^5 is divisible by

a. 6
b. 9
c.5
d. 8​

Answer 1

Answer:

c. 5

Step-by-step explanation:

$5^{16}+ 125^5$

= $5^{16}+ (5^3)^5$

= $5^{16}+ 5^{15}$

= 5($5^{15}+ 5^{14}$)

so it is divisible by 5