# Highest Common Factor of 30, 72, 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 30, 72, 432 i.e. 6 the largest integer that leaves a remainder zero for all numbers.

HCF of 30, 72, 432 is 6 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 30, 72, 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 30, 72, 432 is 6.

HCF(30, 72, 432) = 6

## HCF of 30, 72, 432 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 30, 72, 432 is 6. ### Highest Common Factor of 30,72,432 is 6

Step 1: Since 72 > 30, we apply the division lemma to 72 and 30, to get

72 = 30 x 2 + 12

Step 2: Since the reminder 30 ≠ 0, we apply division lemma to 12 and 30, to get

30 = 12 x 2 + 6

Step 3: We consider the new divisor 12 and the new remainder 6, and apply the division lemma to get

12 = 6 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 6, the HCF of 30 and 72 is 6

Notice that 6 = HCF(12,6) = HCF(30,12) = HCF(72,30) .

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

Step 1: Since 432 > 6, we apply the division lemma to 432 and 6, to get

432 = 6 x 72 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 6, the HCF of 6 and 432 is 6

Notice that 6 = HCF(432,6) .

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### Frequently Asked Questions on HCF of 30, 72, 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 30, 72, 432?

Answer: HCF of 30, 72, 432 is 6 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 30, 72, 432 using Euclid's Algorithm?

Answer: For arbitrary numbers 30, 72, 432 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.