Highest Common Factor of 387, 631, 685, 435 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 387, 631, 685, 435 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 387, 631, 685, 435 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 387, 631, 685, 435 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 387, 631, 685, 435 is 1.
HCF(387, 631, 685, 435) = 1
HCF of 387, 631, 685, 435 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 387, 631, 685, 435 is 1.
Highest Common Factor of 387,631,685,435 is 1
Step 1: Since 631 > 387, we apply the division lemma to 631 and 387, to get
631 = 387 x 1 + 244
Step 2: Since the reminder 387 ≠ 0, we apply division lemma to 244 and 387, to get
387 = 244 x 1 + 143
Step 3: We consider the new divisor 244 and the new remainder 143, and apply the division lemma to get
244 = 143 x 1 + 101
We consider the new divisor 143 and the new remainder 101,and apply the division lemma to get
143 = 101 x 1 + 42
We consider the new divisor 101 and the new remainder 42,and apply the division lemma to get
101 = 42 x 2 + 17
We consider the new divisor 42 and the new remainder 17,and apply the division lemma to get
42 = 17 x 2 + 8
We consider the new divisor 17 and the new remainder 8,and apply the division lemma to get
17 = 8 x 2 + 1
We consider the new divisor 8 and the new remainder 1,and apply the division lemma to get
8 = 1 x 8 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 387 and 631 is 1
Notice that 1 = HCF(8,1) = HCF(17,8) = HCF(42,17) = HCF(101,42) = HCF(143,101) = HCF(244,143) = HCF(387,244) = HCF(631,387) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 685 > 1, we apply the division lemma to 685 and 1, to get
685 = 1 x 685 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 685 is 1
Notice that 1 = HCF(685,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 435 > 1, we apply the division lemma to 435 and 1, to get
435 = 1 x 435 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 435 is 1
Notice that 1 = HCF(435,1) .
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Frequently Asked Questions on HCF of 387, 631, 685, 435 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 387, 631, 685, 435?
Answer: HCF of 387, 631, 685, 435 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 387, 631, 685, 435 using Euclid's Algorithm?
Answer: For arbitrary numbers 387, 631, 685, 435 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.