Page 2 - ln4
P. 2
Steps to be followed:
Step 1: arrange the given numbers in a line in any order.
Step 2: divide the numbers by the lowest common prime number. Write the quotient below the
numbers.
Step 3: then divide the quotients by the lowest common prime number.
Step 4: repeat the process till there are no common prime numbers to divide by.
Step 5: the product of the divisors is the required HCF.
Example 1: find the HCF of 60 and 72.