A rectangular block 10cm by 20cm by 35cm is cut into an exact number of equal cubes. Find the least possible number of cubes?	Choose the correct choice from the following:
A) 6
B) 56
C) 15
D) 40
E) 22
Volume of the block = 10*20*35= 
<gadget id="calculator">10*20*35</gadget>
<output>7_000</output>
7000 cm^3   Side of the largest cube= H.C.F of 10,20,35 = 5cm   Volume of the cube = 5*5*5= 
<gadget id="calculator">5*5*5</gadget>
<output>125</output>
125 cm^3   Number of cubes= 7000/125= 
<gadget id="calculator">7000/125</gadget>
<output>56</output>
56   Answer is 56
<result>B</result>
A rectangular block 10cm by 20cm by 35cm is cut into an exact number of equal cubes. Find the least possible number of cubes?