Highest Common Factor of 657, 172 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 657, 172 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 657, 172 is 1 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 657, 172 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 657, 172 is 1.
HCF(657, 172) = 1
HCF of 657, 172 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 657, 172 is 1.
Highest Common Factor of 657,172 is 1
Step 1: Since 657 > 172, we apply the division lemma to 657 and 172, to get
657 = 172 x 3 + 141
Step 2: Since the reminder 172 ≠ 0, we apply division lemma to 141 and 172, to get
172 = 141 x 1 + 31
Step 3: We consider the new divisor 141 and the new remainder 31, and apply the division lemma to get
141 = 31 x 4 + 17
We consider the new divisor 31 and the new remainder 17,and apply the division lemma to get
31 = 17 x 1 + 14
We consider the new divisor 17 and the new remainder 14,and apply the division lemma to get
17 = 14 x 1 + 3
We consider the new divisor 14 and the new remainder 3,and apply the division lemma to get
14 = 3 x 4 + 2
We consider the new divisor 3 and the new remainder 2,and apply the division lemma to get
3 = 2 x 1 + 1
We consider the new divisor 2 and the new remainder 1,and apply the division lemma to get
2 = 1 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 657 and 172 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(14,3) = HCF(17,14) = HCF(31,17) = HCF(141,31) = HCF(172,141) = HCF(657,172) .
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Frequently Asked Questions on HCF of 657, 172 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 657, 172?
Answer: HCF of 657, 172 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 657, 172 using Euclid's Algorithm?
Answer: For arbitrary numbers 657, 172 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.