Highest Common Factor of 28, 687, 723, 659 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 28, 687, 723, 659 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 28, 687, 723, 659 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 28, 687, 723, 659 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 28, 687, 723, 659 is 1.
HCF(28, 687, 723, 659) = 1
HCF of 28, 687, 723, 659 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 28, 687, 723, 659 is 1.
Highest Common Factor of 28,687,723,659 is 1
Step 1: Since 687 > 28, we apply the division lemma to 687 and 28, to get
687 = 28 x 24 + 15
Step 2: Since the reminder 28 ≠ 0, we apply division lemma to 15 and 28, to get
28 = 15 x 1 + 13
Step 3: We consider the new divisor 15 and the new remainder 13, and apply the division lemma to get
15 = 13 x 1 + 2
We consider the new divisor 13 and the new remainder 2,and apply the division lemma to get
13 = 2 x 6 + 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 28 and 687 is 1
Notice that 1 = HCF(2,1) = HCF(13,2) = HCF(15,13) = HCF(28,15) = HCF(687,28) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 723 > 1, we apply the division lemma to 723 and 1, to get
723 = 1 x 723 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 723 is 1
Notice that 1 = HCF(723,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 659 > 1, we apply the division lemma to 659 and 1, to get
659 = 1 x 659 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 659 is 1
Notice that 1 = HCF(659,1) .
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Frequently Asked Questions on HCF of 28, 687, 723, 659 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 28, 687, 723, 659?
Answer: HCF of 28, 687, 723, 659 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 28, 687, 723, 659 using Euclid's Algorithm?
Answer: For arbitrary numbers 28, 687, 723, 659 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.