Highest Common Factor of 978, 864, 686, 206 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 978, 864, 686, 206 i.e. 2 the largest integer that leaves a remainder zero for all numbers.
HCF of 978, 864, 686, 206 is 2 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 978, 864, 686, 206 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 978, 864, 686, 206 is 2.
HCF(978, 864, 686, 206) = 2
HCF of 978, 864, 686, 206 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 978, 864, 686, 206 is 2.
Highest Common Factor of 978,864,686,206 is 2
Step 1: Since 978 > 864, we apply the division lemma to 978 and 864, to get
978 = 864 x 1 + 114
Step 2: Since the reminder 864 ≠ 0, we apply division lemma to 114 and 864, to get
864 = 114 x 7 + 66
Step 3: We consider the new divisor 114 and the new remainder 66, and apply the division lemma to get
114 = 66 x 1 + 48
We consider the new divisor 66 and the new remainder 48,and apply the division lemma to get
66 = 48 x 1 + 18
We consider the new divisor 48 and the new remainder 18,and apply the division lemma to get
48 = 18 x 2 + 12
We consider the new divisor 18 and the new remainder 12,and apply the division lemma to get
18 = 12 x 1 + 6
We consider the new divisor 12 and the new remainder 6,and apply the division lemma to get
12 = 6 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 6, the HCF of 978 and 864 is 6
Notice that 6 = HCF(12,6) = HCF(18,12) = HCF(48,18) = HCF(66,48) = HCF(114,66) = HCF(864,114) = HCF(978,864) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 686 > 6, we apply the division lemma to 686 and 6, to get
686 = 6 x 114 + 2
Step 2: Since the reminder 6 ≠ 0, we apply division lemma to 2 and 6, to get
6 = 2 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 6 and 686 is 2
Notice that 2 = HCF(6,2) = HCF(686,6) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 206 > 2, we apply the division lemma to 206 and 2, to get
206 = 2 x 103 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 2 and 206 is 2
Notice that 2 = HCF(206,2) .
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Frequently Asked Questions on HCF of 978, 864, 686, 206 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 978, 864, 686, 206?
Answer: HCF of 978, 864, 686, 206 is 2 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 978, 864, 686, 206 using Euclid's Algorithm?
Answer: For arbitrary numbers 978, 864, 686, 206 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.