Highest Common Factor of 615, 820, 486 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 615, 820, 486 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 615, 820, 486 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 615, 820, 486 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 615, 820, 486 is 1.
HCF(615, 820, 486) = 1
HCF of 615, 820, 486 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 615, 820, 486 is 1.
Highest Common Factor of 615,820,486 is 1
Step 1: Since 820 > 615, we apply the division lemma to 820 and 615, to get
820 = 615 x 1 + 205
Step 2: Since the reminder 615 ≠ 0, we apply division lemma to 205 and 615, to get
615 = 205 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 205, the HCF of 615 and 820 is 205
Notice that 205 = HCF(615,205) = HCF(820,615) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 486 > 205, we apply the division lemma to 486 and 205, to get
486 = 205 x 2 + 76
Step 2: Since the reminder 205 ≠ 0, we apply division lemma to 76 and 205, to get
205 = 76 x 2 + 53
Step 3: We consider the new divisor 76 and the new remainder 53, and apply the division lemma to get
76 = 53 x 1 + 23
We consider the new divisor 53 and the new remainder 23,and apply the division lemma to get
53 = 23 x 2 + 7
We consider the new divisor 23 and the new remainder 7,and apply the division lemma to get
23 = 7 x 3 + 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 205 and 486 is 1
Notice that 1 = HCF(2,1) = HCF(7,2) = HCF(23,7) = HCF(53,23) = HCF(76,53) = HCF(205,76) = HCF(486,205) .
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Frequently Asked Questions on HCF of 615, 820, 486 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 615, 820, 486?
Answer: HCF of 615, 820, 486 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 615, 820, 486 using Euclid's Algorithm?
Answer: For arbitrary numbers 615, 820, 486 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.