Find the units digit of 13^19 *19 ^13

I already tried an answer but got it wrong. Can someone please explain how to do this problem?

LandofLe Aug 7, 2023

#1**+3 **

The units digit for powers of three is: 3,9,7,1,3... The 19th number will be 7.

The pattern for 9 is: 9,1,9... and the thirteenth number will be 9

Then we have 7*9, which has a units digit of 3

plaintainmountain Aug 7, 2023

#1**+3 **

Best Answer

The units digit for powers of three is: 3,9,7,1,3... The 19th number will be 7.

The pattern for 9 is: 9,1,9... and the thirteenth number will be 9

Then we have 7*9, which has a units digit of 3

plaintainmountain Aug 7, 2023