Highest Common Factor of 637, 72243 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 637, 72243 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 637, 72243 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 637, 72243 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 637, 72243 is 1.

HCF(637, 72243) = 1

HCF of 637, 72243 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 637, 72243 is 1.

Highest Common Factor of 637,72243 using Euclid's algorithm

Highest Common Factor of 637,72243 is 1

Step 1: Since 72243 > 637, we apply the division lemma to 72243 and 637, to get

72243 = 637 x 113 + 262

Step 2: Since the reminder 637 ≠ 0, we apply division lemma to 262 and 637, to get

637 = 262 x 2 + 113

Step 3: We consider the new divisor 262 and the new remainder 113, and apply the division lemma to get

262 = 113 x 2 + 36

We consider the new divisor 113 and the new remainder 36,and apply the division lemma to get

113 = 36 x 3 + 5

We consider the new divisor 36 and the new remainder 5,and apply the division lemma to get

36 = 5 x 7 + 1

We consider the new divisor 5 and the new remainder 1,and apply the division lemma to get

5 = 1 x 5 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 637 and 72243 is 1

Notice that 1 = HCF(5,1) = HCF(36,5) = HCF(113,36) = HCF(262,113) = HCF(637,262) = HCF(72243,637) .

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Frequently Asked Questions on HCF of 637, 72243 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 637, 72243?

Answer: HCF of 637, 72243 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 637, 72243 using Euclid's Algorithm?

Answer: For arbitrary numbers 637, 72243 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.