Match pg 463/ 15

<p>If m is the greatest prime factor of 38 and n is the greatest prime factor of 100, what is the value of m+n???
A.7
B.12
C.24
D.29
E.44</p>

<p>The way I see it: 38=2<em>2</em>7 and 100=2<em>2</em>5*5
5+7=12
B</p>

<p>WHY DOES THE ANSWERS SAY 24???</p>

<p>If m is the greatest prime factor of 38 and n is the greatest prime factor of 100, what is the value of m+n???
A.7
B.12
C.24
D.29
E.44</p>

<p>first get the factors of 38- 1x38, 2x19… notice that 19 is the greatest prime factor of 38.
same for 100- 1x100…5x20…notice that 5 is the greatest prime factor of 100</p>

<p>so 19+5=24</p>

<p>“The way I see it: 38=2<em>2</em>7”</p>

<p>Its 38, not 28, hence its 19*2. 19+5 = 24.</p>

<p>LOL… i knew it was something stupid like that</p>

<p>Thanks</p>