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18 = 21 x 32
2 x 3 x 3 = 18
the answer is ........ factors are 1,2,3,6,9,18 ; 1x18,2x9,3x6 prime factors are 2x3x3
They are: 2+5+11 = 18
126
4.2
2
18
The LCM is: 72
NO
90
It is: 18
It is 6