Highest Common Factor of 648, 198 using Euclid's algorithm
Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
HCF Calculator using the Euclid Division Algorithm helps you to find the Highest common factor (HCF) easily for 648, 198 i.e. 18 the largest integer that leaves a remainder zero for all numbers.
HCF of 648, 198 is 18 the largest number which exactly divides all the numbers i.e. where the remainder is zero. Let us get into the working of this example.
Consider we have numbers 648, 198 and we need to find the HCF of these numbers. To do so, we need to choose the largest integer first and then as per Euclid's Division Lemma a = bq + r where 0 ≤ r ≤ b
Highest common factor (HCF) of 648, 198 is 18.
HCF(648, 198) = 18
HCF of 648, 198 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 648, 198 is 18.
Highest Common Factor of 648,198 is 18
Step 1: Since 648 > 198, we apply the division lemma to 648 and 198, to get
648 = 198 x 3 + 54
Step 2: Since the reminder 198 ≠ 0, we apply division lemma to 54 and 198, to get
198 = 54 x 3 + 36
Step 3: We consider the new divisor 54 and the new remainder 36, and apply the division lemma to get
54 = 36 x 1 + 18
We consider the new divisor 36 and the new remainder 18, and apply the division lemma to get
36 = 18 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 18, the HCF of 648 and 198 is 18
Notice that 18 = HCF(36,18) = HCF(54,36) = HCF(198,54) = HCF(648,198) .
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Frequently Asked Questions on HCF of 648, 198 using Euclid's Algorithm
1. What is the Euclid division algorithm?
Answer: Euclid's Division Algorithm is a technique to compute the Highest Common Factor (HCF) of given positive integers.
2. what is the HCF of 648, 198?
Answer: HCF of 648, 198 is 18 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 648, 198 using Euclid's Algorithm?
Answer: For arbitrary numbers 648, 198 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.