Question

find HCF of 22, 66 and 21​

Answer 1

Step-by-step explanation:

Therefore, common factor of 22 (Twenty two), 33(Thirty three) and 55(Fifty five) = 1 and 11. Highest common factor (H.C.F) of 22 (Twenty two), 33(Thirty three) and 55(Fifty five) = 11. 8.

So HCF = 2 * 11 = 22. 66 - 44 = 22 check if 22 divides both . Since it divides both, 22 is the HCF. Find difference A - B of given numbers.

Factors of 21 (Twenty one) = 1, 3, 7and 21. Factors of 35 (Thirty five) = 1, 5, 7 and 35. Therefore, common factor of 21 (Twenty one) and 35 (Thirty five) = 1 and 7. Highest common factor (H.C.F) of 21 (Twenty one) and 35 (Thirty five) = 7.

Answer 2

Answer:

1 is the HCF of 22 , 66 & 21

factors of 22:

List of positive integer factors of 22 that divides 22 without a remainder.

1 ,2 ,11 , 22

Factors of 66 :

List of positive integer factors of 66 that divides 66 without a remainder.

1 ,2 ,3 ,6, 11, 22 ,33 ,66

Factors of 21 :

List of positive integer factors of 21 that divides 21 without a remainder.

1, 3, 7 ,21

Greatest Common Factor :

We found the factors 22,66,21 . The biggest common factor number is the GCF number.

So the greatest common factor 22,66,21 is 1.

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