Explain the following question?

#1

How many ordered pairs of two numbers are possible such that LCM = 120 and GCD = 2?

#2

There might be 3 ordered pairs.
Possible ordered pairs are :
2,120
6,40
10,24

#3

The answer is given as 8,

image

2,120
6,40
8,30
10,24

what are the others?

#4

I guess the answer should be 8 only

image
image942×372 108 KB

And prime factor pairs are 3

#5

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