Two numbers N and 12 have LCM = 42 and GCF = 6. Find N. Choose the correct choice from the following answers:
A) 35
B) 56
C) 21
D) 87
E) 24
The product of two integers is equal to the product of their LCM and GCF. Hence.   12* N = 42 * 6   N = 42*6 / 12= 
<gadget id="calculator">42*6 / 12</gadget>
<output>21</output>
21 correct answer 21
<result>C</result>
Two numbers N and 12 have LCM = 42 and GCF = 6. Find N.