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What is the HCF and LCM of 18 , 42 ,90

Sagot :

dpete6

Answer:

2

Step-by-step explanation:

The factors of 8 are: 1, 2, 4, 8

The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42

The factors of 90 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90

Then the greatest common factor is 2.