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 261, 631, 162 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 261, 631, 162 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 261, 631, 162 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 261, 631, 162 is 1.
HCF(261, 631, 162) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 261, 631, 162 is 1.
Step 1: Since 631 > 261, we apply the division lemma to 631 and 261, to get
631 = 261 x 2 + 109
Step 2: Since the reminder 261 ≠ 0, we apply division lemma to 109 and 261, to get
261 = 109 x 2 + 43
Step 3: We consider the new divisor 109 and the new remainder 43, and apply the division lemma to get
109 = 43 x 2 + 23
We consider the new divisor 43 and the new remainder 23,and apply the division lemma to get
43 = 23 x 1 + 20
We consider the new divisor 23 and the new remainder 20,and apply the division lemma to get
23 = 20 x 1 + 3
We consider the new divisor 20 and the new remainder 3,and apply the division lemma to get
20 = 3 x 6 + 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 261 and 631 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(20,3) = HCF(23,20) = HCF(43,23) = HCF(109,43) = HCF(261,109) = HCF(631,261) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 162 > 1, we apply the division lemma to 162 and 1, to get
162 = 1 x 162 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 162 is 1
Notice that 1 = HCF(162,1) .
Here are some samples of HCF using Euclid's Algorithm calculations.
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 261, 631, 162?
Answer: HCF of 261, 631, 162 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 261, 631, 162 using Euclid's Algorithm?
Answer: For arbitrary numbers 261, 631, 162 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.