Highest Common Factor of 816, 868, 77 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 816, 868, 77 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 816, 868, 77 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 816, 868, 77 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 816, 868, 77 is 1.
HCF(816, 868, 77) = 1
HCF of 816, 868, 77 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 816, 868, 77 is 1.
Highest Common Factor of 816,868,77 is 1
Step 1: Since 868 > 816, we apply the division lemma to 868 and 816, to get
868 = 816 x 1 + 52
Step 2: Since the reminder 816 ≠ 0, we apply division lemma to 52 and 816, to get
816 = 52 x 15 + 36
Step 3: We consider the new divisor 52 and the new remainder 36, and apply the division lemma to get
52 = 36 x 1 + 16
We consider the new divisor 36 and the new remainder 16,and apply the division lemma to get
36 = 16 x 2 + 4
We consider the new divisor 16 and the new remainder 4,and apply the division lemma to get
16 = 4 x 4 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 4, the HCF of 816 and 868 is 4
Notice that 4 = HCF(16,4) = HCF(36,16) = HCF(52,36) = HCF(816,52) = HCF(868,816) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 77 > 4, we apply the division lemma to 77 and 4, to get
77 = 4 x 19 + 1
Step 2: Since the reminder 4 ≠ 0, we apply division lemma to 1 and 4, to get
4 = 1 x 4 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 4 and 77 is 1
Notice that 1 = HCF(4,1) = HCF(77,4) .
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Frequently Asked Questions on HCF of 816, 868, 77 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 816, 868, 77?
Answer: HCF of 816, 868, 77 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 816, 868, 77 using Euclid's Algorithm?
Answer: For arbitrary numbers 816, 868, 77 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.