Calculate the HCF of 69, 561, 963	Choose the correct choice from the following answers: A) 4 B) 5 C) 22 D) 3 E) 1
Explanation:   Lets solve this question by factorization method.   The factors of 69 are: 1, 3, 23, 69   The factors of 561 are: 1, 3, 11, 17, 33, 51, 187, 561   The factors of 963 are: 1, 3, 9, 107, 321, 963   Then the greatest common factor is 3.   Answer: Option 3
<result>D</result>
Calculate the HCF of 69, 561, 963