Highest Common Factor of 503, 181 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 503, 181 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 503, 181 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 503, 181 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 503, 181 is 1.

HCF(503, 181) = 1

HCF of 503, 181 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 503, 181 is 1.

Highest Common Factor of 503,181 using Euclid's algorithm

Highest Common Factor of 503,181 is 1

Step 1: Since 503 > 181, we apply the division lemma to 503 and 181, to get

503 = 181 x 2 + 141

Step 2: Since the reminder 181 ≠ 0, we apply division lemma to 141 and 181, to get

181 = 141 x 1 + 40

Step 3: We consider the new divisor 141 and the new remainder 40, and apply the division lemma to get

141 = 40 x 3 + 21

We consider the new divisor 40 and the new remainder 21,and apply the division lemma to get

40 = 21 x 1 + 19

We consider the new divisor 21 and the new remainder 19,and apply the division lemma to get

21 = 19 x 1 + 2

We consider the new divisor 19 and the new remainder 2,and apply the division lemma to get

19 = 2 x 9 + 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 503 and 181 is 1

Notice that 1 = HCF(2,1) = HCF(19,2) = HCF(21,19) = HCF(40,21) = HCF(141,40) = HCF(181,141) = HCF(503,181) .

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Frequently Asked Questions on HCF of 503, 181 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 503, 181?

Answer: HCF of 503, 181 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 503, 181 using Euclid's Algorithm?

Answer: For arbitrary numbers 503, 181 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.