Question

The HCF of first 6 multiples of 2 is _____ .

• A. 1
• B. 4
• C. 2
• D. 3

Answer 1

The correct option is C 2

First 6 multiples of 2 are: 2, 4, 6, 8, 10 and 12

Factors of 2: 1 and 2
Factors of 4: 1, 2 and 4
Factors of 6: 1, 2, 3 and 6
Factors of 8: 1, 2, 4 and 8
Factors of 10: 1, 2, 5 and 10
Factors of 12: 1, 2, 3, 4, 6 and 12

We can see that the common factors are 1, 2 for all the multiples.
Hence, the HCF is 2.