Highest Common Factor of 155, 523 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 155, 523 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 155, 523 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 155, 523 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 155, 523 is 1.

HCF(155, 523) = 1

HCF of 155, 523 using Euclid's algorithm

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

HCF of:

Highest common factor (HCF) of 155, 523 is 1.

Highest Common Factor of 155,523 using Euclid's algorithm

Highest Common Factor of 155,523 is 1

Step 1: Since 523 > 155, we apply the division lemma to 523 and 155, to get

523 = 155 x 3 + 58

Step 2: Since the reminder 155 ≠ 0, we apply division lemma to 58 and 155, to get

155 = 58 x 2 + 39

Step 3: We consider the new divisor 58 and the new remainder 39, and apply the division lemma to get

58 = 39 x 1 + 19

We consider the new divisor 39 and the new remainder 19,and apply the division lemma to get

39 = 19 x 2 + 1

We consider the new divisor 19 and the new remainder 1,and apply the division lemma to get

19 = 1 x 19 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 155 and 523 is 1

Notice that 1 = HCF(19,1) = HCF(39,19) = HCF(58,39) = HCF(155,58) = HCF(523,155) .

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Frequently Asked Questions on HCF of 155, 523 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 155, 523?

Answer: HCF of 155, 523 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 155, 523 using Euclid's Algorithm?

Answer: For arbitrary numbers 155, 523 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.