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 501, 643 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 501, 643 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 501, 643 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 501, 643 is 1.
HCF(501, 643) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 501, 643 is 1.
Step 1: Since 643 > 501, we apply the division lemma to 643 and 501, to get
643 = 501 x 1 + 142
Step 2: Since the reminder 501 ≠ 0, we apply division lemma to 142 and 501, to get
501 = 142 x 3 + 75
Step 3: We consider the new divisor 142 and the new remainder 75, and apply the division lemma to get
142 = 75 x 1 + 67
We consider the new divisor 75 and the new remainder 67,and apply the division lemma to get
75 = 67 x 1 + 8
We consider the new divisor 67 and the new remainder 8,and apply the division lemma to get
67 = 8 x 8 + 3
We consider the new divisor 8 and the new remainder 3,and apply the division lemma to get
8 = 3 x 2 + 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 501 and 643 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(8,3) = HCF(67,8) = HCF(75,67) = HCF(142,75) = HCF(501,142) = HCF(643,501) .
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 501, 643?
Answer: HCF of 501, 643 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 501, 643 using Euclid's Algorithm?
Answer: For arbitrary numbers 501, 643 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.