Highest Common Factor of 980, 217, 786 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 980, 217, 786 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 980, 217, 786 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 980, 217, 786 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 980, 217, 786 is 1.
HCF(980, 217, 786) = 1
HCF of 980, 217, 786 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 980, 217, 786 is 1.
Highest Common Factor of 980,217,786 is 1
Step 1: Since 980 > 217, we apply the division lemma to 980 and 217, to get
980 = 217 x 4 + 112
Step 2: Since the reminder 217 ≠ 0, we apply division lemma to 112 and 217, to get
217 = 112 x 1 + 105
Step 3: We consider the new divisor 112 and the new remainder 105, and apply the division lemma to get
112 = 105 x 1 + 7
We consider the new divisor 105 and the new remainder 7, and apply the division lemma to get
105 = 7 x 15 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 7, the HCF of 980 and 217 is 7
Notice that 7 = HCF(105,7) = HCF(112,105) = HCF(217,112) = HCF(980,217) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 786 > 7, we apply the division lemma to 786 and 7, to get
786 = 7 x 112 + 2
Step 2: Since the reminder 7 ≠ 0, we apply division lemma to 2 and 7, to get
7 = 2 x 3 + 1
Step 3: 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 7 and 786 is 1
Notice that 1 = HCF(2,1) = HCF(7,2) = HCF(786,7) .
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Frequently Asked Questions on HCF of 980, 217, 786 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 980, 217, 786?
Answer: HCF of 980, 217, 786 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 980, 217, 786 using Euclid's Algorithm?
Answer: For arbitrary numbers 980, 217, 786 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.