Highest Common Factor of 171, 636 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 171, 636 i.e. 3 the largest integer that leaves a remainder zero for all numbers.
HCF of 171, 636 is 3 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 171, 636 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 171, 636 is 3.
HCF(171, 636) = 3
HCF of 171, 636 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 171, 636 is 3.
Highest Common Factor of 171,636 is 3
Step 1: Since 636 > 171, we apply the division lemma to 636 and 171, to get
636 = 171 x 3 + 123
Step 2: Since the reminder 171 ≠ 0, we apply division lemma to 123 and 171, to get
171 = 123 x 1 + 48
Step 3: We consider the new divisor 123 and the new remainder 48, and apply the division lemma to get
123 = 48 x 2 + 27
We consider the new divisor 48 and the new remainder 27,and apply the division lemma to get
48 = 27 x 1 + 21
We consider the new divisor 27 and the new remainder 21,and apply the division lemma to get
27 = 21 x 1 + 6
We consider the new divisor 21 and the new remainder 6,and apply the division lemma to get
21 = 6 x 3 + 3
We consider the new divisor 6 and the new remainder 3,and apply the division lemma to get
6 = 3 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 171 and 636 is 3
Notice that 3 = HCF(6,3) = HCF(21,6) = HCF(27,21) = HCF(48,27) = HCF(123,48) = HCF(171,123) = HCF(636,171) .
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Frequently Asked Questions on HCF of 171, 636 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 171, 636?
Answer: HCF of 171, 636 is 3 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 171, 636 using Euclid's Algorithm?
Answer: For arbitrary numbers 171, 636 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.