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, 451, 122 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 231, 451, 122 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, 451, 122 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, 451, 122 is 1.
HCF(231, 451, 122) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 231, 451, 122 is 1.
Step 1: Since 451 > 231, we apply the division lemma to 451 and 231, to get
451 = 231 x 1 + 220
Step 2: Since the reminder 231 ≠ 0, we apply division lemma to 220 and 231, to get
231 = 220 x 1 + 11
Step 3: We consider the new divisor 220 and the new remainder 11, and apply the division lemma to get
220 = 11 x 20 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 11, the HCF of 231 and 451 is 11
Notice that 11 = HCF(220,11) = HCF(231,220) = HCF(451,231) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 122 > 11, we apply the division lemma to 122 and 11, to get
122 = 11 x 11 + 1
Step 2: Since the reminder 11 ≠ 0, we apply division lemma to 1 and 11, to get
11 = 1 x 11 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 11 and 122 is 1
Notice that 1 = HCF(11,1) = HCF(122,11) .
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 231, 451, 122?
Answer: HCF of 231, 451, 122 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 231, 451, 122 using Euclid's Algorithm?
Answer: For arbitrary numbers 231, 451, 122 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.