Highest Common Factor of 549, 432 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 549, 432 i.e. 9 the largest integer that leaves a remainder zero for all numbers.

HCF of 549, 432 is 9 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 549, 432 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 549, 432 is 9.

HCF(549, 432) = 9

HCF of 549, 432 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 549, 432 is 9.

Highest Common Factor of 549,432 using Euclid's algorithm

Highest Common Factor of 549,432 is 9

Step 1: Since 549 > 432, we apply the division lemma to 549 and 432, to get

549 = 432 x 1 + 117

Step 2: Since the reminder 432 ≠ 0, we apply division lemma to 117 and 432, to get

432 = 117 x 3 + 81

Step 3: We consider the new divisor 117 and the new remainder 81, and apply the division lemma to get

117 = 81 x 1 + 36

We consider the new divisor 81 and the new remainder 36,and apply the division lemma to get

81 = 36 x 2 + 9

We consider the new divisor 36 and the new remainder 9,and apply the division lemma to get

36 = 9 x 4 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 9, the HCF of 549 and 432 is 9

Notice that 9 = HCF(36,9) = HCF(81,36) = HCF(117,81) = HCF(432,117) = HCF(549,432) .

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Frequently Asked Questions on HCF of 549, 432 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 549, 432?

Answer: HCF of 549, 432 is 9 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 549, 432 using Euclid's Algorithm?

Answer: For arbitrary numbers 549, 432 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.