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 643, 834, 524 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 643, 834, 524 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 643, 834, 524 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 643, 834, 524 is 1.
HCF(643, 834, 524) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 643, 834, 524 is 1.
Step 1: Since 834 > 643, we apply the division lemma to 834 and 643, to get
834 = 643 x 1 + 191
Step 2: Since the reminder 643 ≠ 0, we apply division lemma to 191 and 643, to get
643 = 191 x 3 + 70
Step 3: We consider the new divisor 191 and the new remainder 70, and apply the division lemma to get
191 = 70 x 2 + 51
We consider the new divisor 70 and the new remainder 51,and apply the division lemma to get
70 = 51 x 1 + 19
We consider the new divisor 51 and the new remainder 19,and apply the division lemma to get
51 = 19 x 2 + 13
We consider the new divisor 19 and the new remainder 13,and apply the division lemma to get
19 = 13 x 1 + 6
We consider the new divisor 13 and the new remainder 6,and apply the division lemma to get
13 = 6 x 2 + 1
We consider the new divisor 6 and the new remainder 1,and apply the division lemma to get
6 = 1 x 6 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 643 and 834 is 1
Notice that 1 = HCF(6,1) = HCF(13,6) = HCF(19,13) = HCF(51,19) = HCF(70,51) = HCF(191,70) = HCF(643,191) = HCF(834,643) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 524 > 1, we apply the division lemma to 524 and 1, to get
524 = 1 x 524 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 524 is 1
Notice that 1 = HCF(524,1) .
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 643, 834, 524?
Answer: HCF of 643, 834, 524 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 643, 834, 524 using Euclid's Algorithm?
Answer: For arbitrary numbers 643, 834, 524 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.