To determine the Highest Common Factor (HCF) of 196 and 38220 using the long division method, we can follow these steps:
- Step 1: Divide the larger number (38220) by the smaller number (196).
- Step 2: Record the quotient and the remainder from this division.
- Step 3: Replace the larger number with the smaller number and the smaller number with the remainder from the previous step.
- Step 4: Repeat the division until the remainder is zero.
- Step 5: The last non-zero remainder is the HCF.
Now, let’s perform the division:
1. We divide 38220 by 196:
38220 ÷ 196 = 195 with a remainder of 30.
2. Next, we replace 38220 with 196 and 196 with the remainder 30:
196 ÷ 30 = 6 with a remainder of 16.
3. Again, we apply the same process:
30 ÷ 16 = 1 with a remainder of 14.
4. Replace again:
16 ÷ 14 = 1 with a remainder of 2.
5. Continue the process:
14 ÷ 2 = 7 with a remainder of 0.
At this point, the remainder is zero, which means we stop here. The last non-zero remainder is 2.
Thus, the HCF of 196 and 38220 is 2.