Highest Common Factor of 861, 391, 319 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 861, 391, 319 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 861, 391, 319 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 861, 391, 319 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 861, 391, 319 is 1.
HCF(861, 391, 319) = 1
HCF of 861, 391, 319 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 861, 391, 319 is 1.
Highest Common Factor of 861,391,319 is 1
Step 1: Since 861 > 391, we apply the division lemma to 861 and 391, to get
861 = 391 x 2 + 79
Step 2: Since the reminder 391 ≠ 0, we apply division lemma to 79 and 391, to get
391 = 79 x 4 + 75
Step 3: We consider the new divisor 79 and the new remainder 75, and apply the division lemma to get
79 = 75 x 1 + 4
We consider the new divisor 75 and the new remainder 4,and apply the division lemma to get
75 = 4 x 18 + 3
We consider the new divisor 4 and the new remainder 3,and apply the division lemma to get
4 = 3 x 1 + 1
We consider the new divisor 3 and the new remainder 1,and apply the division lemma 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 861 and 391 is 1
Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(75,4) = HCF(79,75) = HCF(391,79) = HCF(861,391) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 319 > 1, we apply the division lemma to 319 and 1, to get
319 = 1 x 319 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 319 is 1
Notice that 1 = HCF(319,1) .
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Frequently Asked Questions on HCF of 861, 391, 319 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 861, 391, 319?
Answer: HCF of 861, 391, 319 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 861, 391, 319 using Euclid's Algorithm?
Answer: For arbitrary numbers 861, 391, 319 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.
