Highest Common Factor of 615, 172, 56 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, 172, 56 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 615, 172, 56 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, 172, 56 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, 172, 56 is 1.
HCF(615, 172, 56) = 1
HCF of 615, 172, 56 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, 172, 56 is 1.
Highest Common Factor of 615,172,56 is 1
Step 1: Since 615 > 172, we apply the division lemma to 615 and 172, to get
615 = 172 x 3 + 99
Step 2: Since the reminder 172 ≠ 0, we apply division lemma to 99 and 172, to get
172 = 99 x 1 + 73
Step 3: We consider the new divisor 99 and the new remainder 73, and apply the division lemma to get
99 = 73 x 1 + 26
We consider the new divisor 73 and the new remainder 26,and apply the division lemma to get
73 = 26 x 2 + 21
We consider the new divisor 26 and the new remainder 21,and apply the division lemma to get
26 = 21 x 1 + 5
We consider the new divisor 21 and the new remainder 5,and apply the division lemma to get
21 = 5 x 4 + 1
We consider the new divisor 5 and the new remainder 1,and apply the division lemma to get
5 = 1 x 5 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 615 and 172 is 1
Notice that 1 = HCF(5,1) = HCF(21,5) = HCF(26,21) = HCF(73,26) = HCF(99,73) = HCF(172,99) = HCF(615,172) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 56 > 1, we apply the division lemma to 56 and 1, to get
56 = 1 x 56 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 56 is 1
Notice that 1 = HCF(56,1) .
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Frequently Asked Questions on HCF of 615, 172, 56 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, 172, 56?
Answer: HCF of 615, 172, 56 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 615, 172, 56 using Euclid's Algorithm?
Answer: For arbitrary numbers 615, 172, 56 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.