Highest Common Factor of 905, 6981 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 905, 6981 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 905, 6981 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 905, 6981 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 905, 6981 is 1.
HCF(905, 6981) = 1
HCF of 905, 6981 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 905, 6981 is 1.
Highest Common Factor of 905,6981 is 1
Step 1: Since 6981 > 905, we apply the division lemma to 6981 and 905, to get
6981 = 905 x 7 + 646
Step 2: Since the reminder 905 ≠ 0, we apply division lemma to 646 and 905, to get
905 = 646 x 1 + 259
Step 3: We consider the new divisor 646 and the new remainder 259, and apply the division lemma to get
646 = 259 x 2 + 128
We consider the new divisor 259 and the new remainder 128,and apply the division lemma to get
259 = 128 x 2 + 3
We consider the new divisor 128 and the new remainder 3,and apply the division lemma to get
128 = 3 x 42 + 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 905 and 6981 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(128,3) = HCF(259,128) = HCF(646,259) = HCF(905,646) = HCF(6981,905) .
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Frequently Asked Questions on HCF of 905, 6981 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 905, 6981?
Answer: HCF of 905, 6981 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 905, 6981 using Euclid's Algorithm?
Answer: For arbitrary numbers 905, 6981 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.