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 391, 531 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 391, 531 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 391, 531 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 391, 531 is 1.
HCF(391, 531) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 391, 531 is 1.
Step 1: Since 531 > 391, we apply the division lemma to 531 and 391, to get
531 = 391 x 1 + 140
Step 2: Since the reminder 391 ≠ 0, we apply division lemma to 140 and 391, to get
391 = 140 x 2 + 111
Step 3: We consider the new divisor 140 and the new remainder 111, and apply the division lemma to get
140 = 111 x 1 + 29
We consider the new divisor 111 and the new remainder 29,and apply the division lemma to get
111 = 29 x 3 + 24
We consider the new divisor 29 and the new remainder 24,and apply the division lemma to get
29 = 24 x 1 + 5
We consider the new divisor 24 and the new remainder 5,and apply the division lemma to get
24 = 5 x 4 + 4
We consider the new divisor 5 and the new remainder 4,and apply the division lemma to get
5 = 4 x 1 + 1
We consider the new divisor 4 and the new remainder 1,and apply the division lemma 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 391 and 531 is 1
Notice that 1 = HCF(4,1) = HCF(5,4) = HCF(24,5) = HCF(29,24) = HCF(111,29) = HCF(140,111) = HCF(391,140) = HCF(531,391) .
Here are some samples of HCF using Euclid's Algorithm calculations.
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 391, 531?
Answer: HCF of 391, 531 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 391, 531 using Euclid's Algorithm?
Answer: For arbitrary numbers 391, 531 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.