Find the greatest number that exactly divides 180 and 452.
2
8
7
4
Clearly, the required number = HCF of 180 and 452.
By long division, we get:
∴ HCF of 180 and 452 is 4
Hence, the required number is 4.
Find the greatest number that exactly divides 168 and 980.
Find the greatest number that divides 93 and 40 exactly ?