Highest Common Factor of 561, 817, 609 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 561, 817, 609 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 561, 817, 609 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 561, 817, 609 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 561, 817, 609 is 1.
HCF(561, 817, 609) = 1
HCF of 561, 817, 609 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 561, 817, 609 is 1.
Highest Common Factor of 561,817,609 is 1
Step 1: Since 817 > 561, we apply the division lemma to 817 and 561, to get
817 = 561 x 1 + 256
Step 2: Since the reminder 561 ≠ 0, we apply division lemma to 256 and 561, to get
561 = 256 x 2 + 49
Step 3: We consider the new divisor 256 and the new remainder 49, and apply the division lemma to get
256 = 49 x 5 + 11
We consider the new divisor 49 and the new remainder 11,and apply the division lemma to get
49 = 11 x 4 + 5
We consider the new divisor 11 and the new remainder 5,and apply the division lemma to get
11 = 5 x 2 + 1
We consider the new divisor 5 and the new remainder 1,and apply the division lemma to get
5 = 1 x 5 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 561 and 817 is 1
Notice that 1 = HCF(5,1) = HCF(11,5) = HCF(49,11) = HCF(256,49) = HCF(561,256) = HCF(817,561) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 609 > 1, we apply the division lemma to 609 and 1, to get
609 = 1 x 609 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 609 is 1
Notice that 1 = HCF(609,1) .
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Frequently Asked Questions on HCF of 561, 817, 609 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 561, 817, 609?
Answer: HCF of 561, 817, 609 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 561, 817, 609 using Euclid's Algorithm?
Answer: For arbitrary numbers 561, 817, 609 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.