Highest Common Factor of 561, 964, 295, 642 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, 964, 295, 642 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 561, 964, 295, 642 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, 964, 295, 642 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, 964, 295, 642 is 1.
HCF(561, 964, 295, 642) = 1
HCF of 561, 964, 295, 642 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, 964, 295, 642 is 1.
Highest Common Factor of 561,964,295,642 is 1
Step 1: Since 964 > 561, we apply the division lemma to 964 and 561, to get
964 = 561 x 1 + 403
Step 2: Since the reminder 561 ≠ 0, we apply division lemma to 403 and 561, to get
561 = 403 x 1 + 158
Step 3: We consider the new divisor 403 and the new remainder 158, and apply the division lemma to get
403 = 158 x 2 + 87
We consider the new divisor 158 and the new remainder 87,and apply the division lemma to get
158 = 87 x 1 + 71
We consider the new divisor 87 and the new remainder 71,and apply the division lemma to get
87 = 71 x 1 + 16
We consider the new divisor 71 and the new remainder 16,and apply the division lemma to get
71 = 16 x 4 + 7
We consider the new divisor 16 and the new remainder 7,and apply the division lemma to get
16 = 7 x 2 + 2
We consider the new divisor 7 and the new remainder 2,and apply the division lemma to get
7 = 2 x 3 + 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 561 and 964 is 1
Notice that 1 = HCF(2,1) = HCF(7,2) = HCF(16,7) = HCF(71,16) = HCF(87,71) = HCF(158,87) = HCF(403,158) = HCF(561,403) = HCF(964,561) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 295 > 1, we apply the division lemma to 295 and 1, to get
295 = 1 x 295 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 295 is 1
Notice that 1 = HCF(295,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 642 > 1, we apply the division lemma to 642 and 1, to get
642 = 1 x 642 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 642 is 1
Notice that 1 = HCF(642,1) .
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Frequently Asked Questions on HCF of 561, 964, 295, 642 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, 964, 295, 642?
Answer: HCF of 561, 964, 295, 642 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 561, 964, 295, 642 using Euclid's Algorithm?
Answer: For arbitrary numbers 561, 964, 295, 642 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.