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 811, 662, 423 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 811, 662, 423 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 811, 662, 423 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 811, 662, 423 is 1.
HCF(811, 662, 423) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 811, 662, 423 is 1.
Step 1: Since 811 > 662, we apply the division lemma to 811 and 662, to get
811 = 662 x 1 + 149
Step 2: Since the reminder 662 ≠ 0, we apply division lemma to 149 and 662, to get
662 = 149 x 4 + 66
Step 3: We consider the new divisor 149 and the new remainder 66, and apply the division lemma to get
149 = 66 x 2 + 17
We consider the new divisor 66 and the new remainder 17,and apply the division lemma to get
66 = 17 x 3 + 15
We consider the new divisor 17 and the new remainder 15,and apply the division lemma to get
17 = 15 x 1 + 2
We consider the new divisor 15 and the new remainder 2,and apply the division lemma to get
15 = 2 x 7 + 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 811 and 662 is 1
Notice that 1 = HCF(2,1) = HCF(15,2) = HCF(17,15) = HCF(66,17) = HCF(149,66) = HCF(662,149) = HCF(811,662) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 423 > 1, we apply the division lemma to 423 and 1, to get
423 = 1 x 423 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 423 is 1
Notice that 1 = HCF(423,1) .
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 811, 662, 423?
Answer: HCF of 811, 662, 423 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 811, 662, 423 using Euclid's Algorithm?
Answer: For arbitrary numbers 811, 662, 423 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.