Highest Common Factor of 817, 387, 120 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 817, 387, 120 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 817, 387, 120 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 817, 387, 120 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 817, 387, 120 is 1.
HCF(817, 387, 120) = 1
HCF of 817, 387, 120 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 817, 387, 120 is 1.
Highest Common Factor of 817,387,120 is 1
Step 1: Since 817 > 387, we apply the division lemma to 817 and 387, to get
817 = 387 x 2 + 43
Step 2: Since the reminder 387 ≠ 0, we apply division lemma to 43 and 387, to get
387 = 43 x 9 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 43, the HCF of 817 and 387 is 43
Notice that 43 = HCF(387,43) = HCF(817,387) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 120 > 43, we apply the division lemma to 120 and 43, to get
120 = 43 x 2 + 34
Step 2: Since the reminder 43 ≠ 0, we apply division lemma to 34 and 43, to get
43 = 34 x 1 + 9
Step 3: We consider the new divisor 34 and the new remainder 9, and apply the division lemma to get
34 = 9 x 3 + 7
We consider the new divisor 9 and the new remainder 7,and apply the division lemma to get
9 = 7 x 1 + 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 43 and 120 is 1
Notice that 1 = HCF(2,1) = HCF(7,2) = HCF(9,7) = HCF(34,9) = HCF(43,34) = HCF(120,43) .
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Frequently Asked Questions on HCF of 817, 387, 120 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 817, 387, 120?
Answer: HCF of 817, 387, 120 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 817, 387, 120 using Euclid's Algorithm?
Answer: For arbitrary numbers 817, 387, 120 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.
