Answer to Question #177921 in Combinatorics | Number Theory for sdf

Question #177921

1.If and are positive integers greater than 1 and are divisible by b, what

is the last digit of nb? Explain.


1
Expert's answer
2021-04-15T06:57:05-0400

The last digit of nb can be different:

For example:

If n=10 and b=5 the last digit of nb is 0

If n=121 and b=11 the last digit of nb is 1

If n=6 and b=2 the last digit of nb is 2

and so on




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