Highest Common Factor of 421, 538, 471 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 421, 538, 471 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 421, 538, 471 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 421, 538, 471 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 421, 538, 471 is 1.
HCF(421, 538, 471) = 1
HCF of 421, 538, 471 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 421, 538, 471 is 1.
Highest Common Factor of 421,538,471 is 1
Step 1: Since 538 > 421, we apply the division lemma to 538 and 421, to get
538 = 421 x 1 + 117
Step 2: Since the reminder 421 ≠ 0, we apply division lemma to 117 and 421, to get
421 = 117 x 3 + 70
Step 3: We consider the new divisor 117 and the new remainder 70, and apply the division lemma to get
117 = 70 x 1 + 47
We consider the new divisor 70 and the new remainder 47,and apply the division lemma to get
70 = 47 x 1 + 23
We consider the new divisor 47 and the new remainder 23,and apply the division lemma to get
47 = 23 x 2 + 1
We consider the new divisor 23 and the new remainder 1,and apply the division lemma to get
23 = 1 x 23 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 421 and 538 is 1
Notice that 1 = HCF(23,1) = HCF(47,23) = HCF(70,47) = HCF(117,70) = HCF(421,117) = HCF(538,421) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 471 > 1, we apply the division lemma to 471 and 1, to get
471 = 1 x 471 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 471 is 1
Notice that 1 = HCF(471,1) .
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Frequently Asked Questions on HCF of 421, 538, 471 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 421, 538, 471?
Answer: HCF of 421, 538, 471 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 421, 538, 471 using Euclid's Algorithm?
Answer: For arbitrary numbers 421, 538, 471 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.