Highest Common Factor of 438, 365, 324 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 438, 365, 324 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 438, 365, 324 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 438, 365, 324 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 438, 365, 324 is 1.

HCF(438, 365, 324) = 1

HCF of 438, 365, 324 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 438, 365, 324 is 1.

Highest Common Factor of 438,365,324 using Euclid's algorithm

Highest Common Factor of 438,365,324 is 1

Step 1: Since 438 > 365, we apply the division lemma to 438 and 365, to get

438 = 365 x 1 + 73

Step 2: Since the reminder 365 ≠ 0, we apply division lemma to 73 and 365, to get

365 = 73 x 5 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 73, the HCF of 438 and 365 is 73

Notice that 73 = HCF(365,73) = HCF(438,365) .

We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma

Step 1: Since 324 > 73, we apply the division lemma to 324 and 73, to get

324 = 73 x 4 + 32

Step 2: Since the reminder 73 ≠ 0, we apply division lemma to 32 and 73, to get

73 = 32 x 2 + 9

Step 3: We consider the new divisor 32 and the new remainder 9, and apply the division lemma to get

32 = 9 x 3 + 5

We consider the new divisor 9 and the new remainder 5,and apply the division lemma to get

9 = 5 x 1 + 4

We consider the new divisor 5 and the new remainder 4,and apply the division lemma to get

5 = 4 x 1 + 1

We consider the new divisor 4 and the new remainder 1,and apply the division lemma to get

4 = 1 x 4 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 73 and 324 is 1

Notice that 1 = HCF(4,1) = HCF(5,4) = HCF(9,5) = HCF(32,9) = HCF(73,32) = HCF(324,73) .

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Frequently Asked Questions on HCF of 438, 365, 324 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 438, 365, 324?

Answer: HCF of 438, 365, 324 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 438, 365, 324 using Euclid's Algorithm?

Answer: For arbitrary numbers 438, 365, 324 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.