Question

Find last digit of the number 3 to the power of 2015

Answer 1

Answer:

5 is the last digit ...........

Answer 2

Step-by-step explanation:

we, have to understand that the last digit no. in exponents of 3 are 3,9,7 and 1

3^1=3 3

3^2=9 9

3^3=27 7

3^4=81 1

3^5=243 3

3^6=.....9 9

and so on these 4 numbers can be treated a set of numbers which repeat itself

3^2011=.....3

. ......9

. .....7

. ..... 1

3^2015=....3