Highest Common Factor of 65, 638, 356 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 65, 638, 356 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 65, 638, 356 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 65, 638, 356 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 65, 638, 356 is 1.
HCF(65, 638, 356) = 1
HCF of 65, 638, 356 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 65, 638, 356 is 1.
Highest Common Factor of 65,638,356 is 1
Step 1: Since 638 > 65, we apply the division lemma to 638 and 65, to get
638 = 65 x 9 + 53
Step 2: Since the reminder 65 ≠ 0, we apply division lemma to 53 and 65, to get
65 = 53 x 1 + 12
Step 3: We consider the new divisor 53 and the new remainder 12, and apply the division lemma to get
53 = 12 x 4 + 5
We consider the new divisor 12 and the new remainder 5,and apply the division lemma to get
12 = 5 x 2 + 2
We consider the new divisor 5 and the new remainder 2,and apply the division lemma to get
5 = 2 x 2 + 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 65 and 638 is 1
Notice that 1 = HCF(2,1) = HCF(5,2) = HCF(12,5) = HCF(53,12) = HCF(65,53) = HCF(638,65) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 356 > 1, we apply the division lemma to 356 and 1, to get
356 = 1 x 356 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 356 is 1
Notice that 1 = HCF(356,1) .
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Frequently Asked Questions on HCF of 65, 638, 356 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 65, 638, 356?
Answer: HCF of 65, 638, 356 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 65, 638, 356 using Euclid's Algorithm?
Answer: For arbitrary numbers 65, 638, 356 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.