Math chances question

Question

A multiple-choice test has 100 questions, each with four possible answers. Each ques- tion is worth one point, and no points are taken off for incorrect guesses. Someone decides to take the test by guessing the answer to each question at random. What is the probability that the person gets 100%?

Answer 1

(1/4)^100 = 1/4^100 = 1/4 x 1/4 x 1/4 x ... 1/4 1/4 times itself 100 times

= 6.22301528 x 10^-61

=0.000000000 .... 000000006223015828 with 60 zeroes after the decimal point until the 6

Odds are much better that you'll get struck by lightening or win the lottery jackpot