The integer x is divisible by both 10 and 15. Which of the following must be an integer? Choose the correct option:	A) x/50	B) x/30	C) x/10	D) x/40	E) x/20
Prime factorization of 10 = 5*2   Prime factorization of 15= 5*3   LCM of 10 and 15 = 5*2*3= 
<gadget id="calculator">5*2*3</gadget>
<output>30</output>
30   Therefore x/30 must be an integer   Answer x/30
<result>B</result>
The integer x is divisible by both 10 and 15. Which of the following must be an integer?