Highest Common Factor of 385, 981 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 385, 981 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 385, 981 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 385, 981 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 385, 981 is 1.
HCF(385, 981) = 1
HCF of 385, 981 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 385, 981 is 1.
Highest Common Factor of 385,981 is 1
Step 1: Since 981 > 385, we apply the division lemma to 981 and 385, to get
981 = 385 x 2 + 211
Step 2: Since the reminder 385 ≠ 0, we apply division lemma to 211 and 385, to get
385 = 211 x 1 + 174
Step 3: We consider the new divisor 211 and the new remainder 174, and apply the division lemma to get
211 = 174 x 1 + 37
We consider the new divisor 174 and the new remainder 37,and apply the division lemma to get
174 = 37 x 4 + 26
We consider the new divisor 37 and the new remainder 26,and apply the division lemma to get
37 = 26 x 1 + 11
We consider the new divisor 26 and the new remainder 11,and apply the division lemma to get
26 = 11 x 2 + 4
We consider the new divisor 11 and the new remainder 4,and apply the division lemma to get
11 = 4 x 2 + 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 385 and 981 is 1
Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(11,4) = HCF(26,11) = HCF(37,26) = HCF(174,37) = HCF(211,174) = HCF(385,211) = HCF(981,385) .
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Frequently Asked Questions on HCF of 385, 981 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 385, 981?
Answer: HCF of 385, 981 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 385, 981 using Euclid's Algorithm?
Answer: For arbitrary numbers 385, 981 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.