Question of the Day

Test Preparation SAT Preparation
1

<p>I couldn't understand it much less solve it. I don't see the College Board's way of doing this problem, so can someone explain another way of approaching and understanding this problem? Thanks.</p>

2

<p>Y’know, it really helps to post the problem when you ask for help…But whatever.</p>

<p>First, you should try to break down the numbers to match. 50 breaks down into 2(5^2) -the 5^2 gives you the 5 base that the question is looking for. From there, you raise 2(5^2) to the 7 and distribute the 7 over the quantity - 2^7 x (5^(2x7)). 2x7 is 14 so the exponent for 5^n is 14. Thus 5^14 is a factor of 50^7 and has the largest integer.</p>

3

<p>oh god. can you write it down and take a pic or something. Just reading it makes more confusing :p</p>

4

<p><a href=“http://i40.■■■■■■■.com/33nyj38.jpg[/url]”>http://i40.■■■■■■■.com/33nyj38.jpg&lt;/a&gt;&lt;/p&gt;

<p>There we go.</p>

5

<p>^ You went through a lot of effort to help a fellow user with nothing in return. You’re a good guy.</p>

6

<p>I second that.</p>

7

<p>Thank you so much. That makes sense now (:</p>

8

<p>I just divided 50^7 by all the possible options… took 30 seconds and I got choice E.</p>

<p>To check, I divided 50^7 by 5^15 and got a decimal answer, so 14 is logically the largest possible value.</p>

9

<p>Thanks guys, I got it.</p>