Highest Common Factor of 647, 516, 391 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 647, 516, 391 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 647, 516, 391 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 647, 516, 391 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 647, 516, 391 is 1.
HCF(647, 516, 391) = 1
HCF of 647, 516, 391 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 647, 516, 391 is 1.
Highest Common Factor of 647,516,391 is 1
Step 1: Since 647 > 516, we apply the division lemma to 647 and 516, to get
647 = 516 x 1 + 131
Step 2: Since the reminder 516 ≠ 0, we apply division lemma to 131 and 516, to get
516 = 131 x 3 + 123
Step 3: We consider the new divisor 131 and the new remainder 123, and apply the division lemma to get
131 = 123 x 1 + 8
We consider the new divisor 123 and the new remainder 8,and apply the division lemma to get
123 = 8 x 15 + 3
We consider the new divisor 8 and the new remainder 3,and apply the division lemma to get
8 = 3 x 2 + 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 647 and 516 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(8,3) = HCF(123,8) = HCF(131,123) = HCF(516,131) = HCF(647,516) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 391 > 1, we apply the division lemma to 391 and 1, to get
391 = 1 x 391 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 391 is 1
Notice that 1 = HCF(391,1) .
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Frequently Asked Questions on HCF of 647, 516, 391 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 647, 516, 391?
Answer: HCF of 647, 516, 391 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 647, 516, 391 using Euclid's Algorithm?
Answer: For arbitrary numbers 647, 516, 391 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.