Difference between revisions of "2021 JMPSC Accuracy Problems/Problem 14"

(Created page with "==Problem== What is the leftmost digit of the product <cmath>\underbrace{161616 \cdots 16}_{100 \text{ digits }} \times \underbrace{252525 \cdots 25}_{100 \text{ digits }}?</c...")
(No difference)

Revision as of 21:34, 10 July 2021

Problem

What is the leftmost digit of the product \[\underbrace{161616 \cdots 16}_{100 \text{ digits }} \times \underbrace{252525 \cdots 25}_{100 \text{ digits }}?\]

Solution

asdf