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Highest Common Factor of 12, 30, 72 using Euclid's algorithm

HCF Calculator using the Euclid Division Algorithm helps you to find the Highest common factor (HCF) easily for 12, 30, 72 i.e. 6 the largest integer that leaves a remainder zero for all numbers.

HCF of 12, 30, 72 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 12, 30, 72 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 12, 30, 72 is 6.

HCF(12, 30, 72) = 6

HCF of 12, 30, 72 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 12, 30, 72 is 6.

Highest Common Factor of 12,30,72 using Euclid's algorithm

Step 1: Since 30 > 12, we apply the division lemma to 30 and 12, to get

30 = 12 x 2 + 6

Step 2: Since the reminder 12 ≠ 0, we apply division lemma to 6 and 12, 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 12 and 30 is 6

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


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

Step 1: Since 72 > 6, we apply the division lemma to 72 and 6, to get

72 = 6 x 12 + 0

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

Notice that 6 = HCF(72,6) .

Frequently Asked Questions on HCF of 12, 30, 72 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 12, 30, 72?

Answer: HCF of 12, 30, 72 is 6 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 12, 30, 72 using Euclid's Algorithm?

Answer: For arbitrary numbers 12, 30, 72 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.