Hello, Megamind!
According to your explanation, your parentheses are off . . .
. .
This is a much "bigger" problem:
. .
Okay, I quite didn't know which category of question this belongs to, I genuinely expect you to pardon my ignorance.
So here is the question:
What is the remainder obtained when the number (10^{10 })^1 + (10^{10 })^2 + (10^{10})^3 + .... so on till + (10^{10})^10 is divided by 7.
Read (10^{10})^1 as 10 to the power of (10 to the power of 1)
'' ^2 as 10 to the power of (10 to the power of 2)
and so on.