Highest Common Factor of 487, 124 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 487, 124 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 487, 124 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 487, 124 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 487, 124 is 1.

HCF(487, 124) = 1

HCF of 487, 124 using Euclid's algorithm

Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.

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Highest common factor (HCF) of 487, 124 is 1.

Highest Common Factor of 487,124 using Euclid's algorithm

Highest Common Factor of 487,124 is 1

Step 1: Since 487 > 124, we apply the division lemma to 487 and 124, to get

487 = 124 x 3 + 115

Step 2: Since the reminder 124 ≠ 0, we apply division lemma to 115 and 124, to get

124 = 115 x 1 + 9

Step 3: We consider the new divisor 115 and the new remainder 9, and apply the division lemma to get

115 = 9 x 12 + 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 487 and 124 is 1

Notice that 1 = HCF(2,1) = HCF(7,2) = HCF(9,7) = HCF(115,9) = HCF(124,115) = HCF(487,124) .

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Frequently Asked Questions on HCF of 487, 124 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 487, 124?

Answer: HCF of 487, 124 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 487, 124 using Euclid's Algorithm?

Answer: For arbitrary numbers 487, 124 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.