Highest Common Factor of 231, 261, 157 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 231, 261, 157 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 231, 261, 157 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 231, 261, 157 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 231, 261, 157 is 1.
HCF(231, 261, 157) = 1
HCF of 231, 261, 157 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 231, 261, 157 is 1.
Highest Common Factor of 231,261,157 is 1
Step 1: Since 261 > 231, we apply the division lemma to 261 and 231, to get
261 = 231 x 1 + 30
Step 2: Since the reminder 231 ≠ 0, we apply division lemma to 30 and 231, to get
231 = 30 x 7 + 21
Step 3: We consider the new divisor 30 and the new remainder 21, and apply the division lemma to get
30 = 21 x 1 + 9
We consider the new divisor 21 and the new remainder 9,and apply the division lemma to get
21 = 9 x 2 + 3
We consider the new divisor 9 and the new remainder 3,and apply the division lemma to get
9 = 3 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 231 and 261 is 3
Notice that 3 = HCF(9,3) = HCF(21,9) = HCF(30,21) = HCF(231,30) = HCF(261,231) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 157 > 3, we apply the division lemma to 157 and 3, to get
157 = 3 x 52 + 1
Step 2: Since the reminder 3 ≠ 0, we apply division lemma to 1 and 3, to get
3 = 1 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 3 and 157 is 1
Notice that 1 = HCF(3,1) = HCF(157,3) .
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Frequently Asked Questions on HCF of 231, 261, 157 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 231, 261, 157?
Answer: HCF of 231, 261, 157 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 231, 261, 157 using Euclid's Algorithm?
Answer: For arbitrary numbers 231, 261, 157 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.