Highest Common Factor of 571, 981, 128 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 571, 981, 128 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 571, 981, 128 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 571, 981, 128 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 571, 981, 128 is 1.
HCF(571, 981, 128) = 1
HCF of 571, 981, 128 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 571, 981, 128 is 1.
Highest Common Factor of 571,981,128 is 1
Step 1: Since 981 > 571, we apply the division lemma to 981 and 571, to get
981 = 571 x 1 + 410
Step 2: Since the reminder 571 ≠ 0, we apply division lemma to 410 and 571, to get
571 = 410 x 1 + 161
Step 3: We consider the new divisor 410 and the new remainder 161, and apply the division lemma to get
410 = 161 x 2 + 88
We consider the new divisor 161 and the new remainder 88,and apply the division lemma to get
161 = 88 x 1 + 73
We consider the new divisor 88 and the new remainder 73,and apply the division lemma to get
88 = 73 x 1 + 15
We consider the new divisor 73 and the new remainder 15,and apply the division lemma to get
73 = 15 x 4 + 13
We consider the new divisor 15 and the new remainder 13,and apply the division lemma to get
15 = 13 x 1 + 2
We consider the new divisor 13 and the new remainder 2,and apply the division lemma to get
13 = 2 x 6 + 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 571 and 981 is 1
Notice that 1 = HCF(2,1) = HCF(13,2) = HCF(15,13) = HCF(73,15) = HCF(88,73) = HCF(161,88) = HCF(410,161) = HCF(571,410) = HCF(981,571) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 128 > 1, we apply the division lemma to 128 and 1, to get
128 = 1 x 128 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 128 is 1
Notice that 1 = HCF(128,1) .
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Frequently Asked Questions on HCF of 571, 981, 128 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 571, 981, 128?
Answer: HCF of 571, 981, 128 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 571, 981, 128 using Euclid's Algorithm?
Answer: For arbitrary numbers 571, 981, 128 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.
