HCF of 4 and 8

(a)  

What is the HCF of 3 and 12?

(a)  

What is the HCF of 5 and 10?

(a)  

What is the HCF of 30 and 50?

(a)  

What is the HCF of 36 and 60?

(a)  

What is the HCF of 30 and 75?

(a)  

What is the HCF of 80 and 200?

(a)  

What is the HCF of 42 and 80?

(a)  

What is the HCF of 20, 44 and 84?

(a)