<PRE><B>Question 182464</B>
A)
45: ======3, 3, 5
76: 2, 2, ======== 19
None
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B)
39: ===== 3, 13
52: 2, 2,=== 13
13 Ans
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C
42: 2, ==== 3, =======7
72: 2, 2, 2, 3, 3,
84: 2, 2,== 3,========7
Ans 2*3=6 Only 2 columns have identical numbers in all 3 rows. Multiply those 2 numbers for LCM.
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D)
48: 2, 2, 2, 2, ======3
64: 2, 2, 2, 2, 2, 2
96: 2, 2, 2, 2, 2, ===3
2*2*2*2=16
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E)
36: 2, 2, 3, 3
54: 2, == 3, 3, 3
135: ====3, 3, 3, 5 
3*3=9
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Ed</PRE>