1.

Find the remainder when 528528528 upto 528 is divided by 27

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Answer:

Find the REMAINDER when 528528528...up to 528 digits is DIVIDED by 27?

Here's what I have done: The number can be written as 528⋅10525+528⋅10522+...+528 which has 176 TERMS and each term is ≡15mod27 thus the number should be 176∗15mod27 hence 21 should be the remainder.



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