Highest Common Factor of 966, 207, 561 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 966, 207, 561 i.e. 3 the largest integer that leaves a remainder zero for all numbers.
HCF of 966, 207, 561 is 3 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 966, 207, 561 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 966, 207, 561 is 3.
HCF(966, 207, 561) = 3
HCF of 966, 207, 561 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 966, 207, 561 is 3.
Highest Common Factor of 966,207,561 is 3
Step 1: Since 966 > 207, we apply the division lemma to 966 and 207, to get
966 = 207 x 4 + 138
Step 2: Since the reminder 207 ≠ 0, we apply division lemma to 138 and 207, to get
207 = 138 x 1 + 69
Step 3: We consider the new divisor 138 and the new remainder 69, and apply the division lemma to get
138 = 69 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 69, the HCF of 966 and 207 is 69
Notice that 69 = HCF(138,69) = HCF(207,138) = HCF(966,207) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 561 > 69, we apply the division lemma to 561 and 69, to get
561 = 69 x 8 + 9
Step 2: Since the reminder 69 ≠ 0, we apply division lemma to 9 and 69, to get
69 = 9 x 7 + 6
Step 3: We consider the new divisor 9 and the new remainder 6, and apply the division lemma to get
9 = 6 x 1 + 3
We consider the new divisor 6 and the new remainder 3, and apply the division lemma to get
6 = 3 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 69 and 561 is 3
Notice that 3 = HCF(6,3) = HCF(9,6) = HCF(69,9) = HCF(561,69) .
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Frequently Asked Questions on HCF of 966, 207, 561 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 966, 207, 561?
Answer: HCF of 966, 207, 561 is 3 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 966, 207, 561 using Euclid's Algorithm?
Answer: For arbitrary numbers 966, 207, 561 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.