Highest Common Factor of 715, 646, 381 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 715, 646, 381 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 715, 646, 381 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 715, 646, 381 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 715, 646, 381 is 1.
HCF(715, 646, 381) = 1
HCF of 715, 646, 381 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 715, 646, 381 is 1.
Highest Common Factor of 715,646,381 is 1
Step 1: Since 715 > 646, we apply the division lemma to 715 and 646, to get
715 = 646 x 1 + 69
Step 2: Since the reminder 646 ≠ 0, we apply division lemma to 69 and 646, to get
646 = 69 x 9 + 25
Step 3: We consider the new divisor 69 and the new remainder 25, and apply the division lemma to get
69 = 25 x 2 + 19
We consider the new divisor 25 and the new remainder 19,and apply the division lemma to get
25 = 19 x 1 + 6
We consider the new divisor 19 and the new remainder 6,and apply the division lemma to get
19 = 6 x 3 + 1
We consider the new divisor 6 and the new remainder 1,and apply the division lemma to get
6 = 1 x 6 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 715 and 646 is 1
Notice that 1 = HCF(6,1) = HCF(19,6) = HCF(25,19) = HCF(69,25) = HCF(646,69) = HCF(715,646) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 381 > 1, we apply the division lemma to 381 and 1, to get
381 = 1 x 381 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 381 is 1
Notice that 1 = HCF(381,1) .
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Frequently Asked Questions on HCF of 715, 646, 381 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 715, 646, 381?
Answer: HCF of 715, 646, 381 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 715, 646, 381 using Euclid's Algorithm?
Answer: For arbitrary numbers 715, 646, 381 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.