Question

Find the remainder when 8⋅10^18 1^18 is divided by 9.
a) 3
b) 4
c) 5
d) 6

Answer 1

The remainder when 8⋅10^18 1^18 is divided by 9 is 2.

Step-by-step explanation:

To find the remainder when 8⋅10^18 1^18 is divided by 9, we can simplify the expression. First, we can rewrite 8⋅10^18 as 2⋅4⋅10^18. Since 4 is divisible by 9, we can further simplify the expression to 2⋅10^18. Now, we can look at the powers of 10. The remainder when any power of 10 is divided by 9 is always 1.

So, the remainder when 2⋅10^18 is divided by 9 is the same as the remainder when 2⋅1 is divided by 9, which is 2.