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Highest Common Factor of 65, 12, 13 using Euclid's algorithm

HCF Calculator using the Euclid Division Algorithm helps you to find the Highest common factor (HCF) easily for 65, 12, 13 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 65, 12, 13 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 65, 12, 13 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 65, 12, 13 is 1.

HCF(65, 12, 13) = 1

HCF of 65, 12, 13 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 65, 12, 13 is 1.

Highest Common Factor of 65,12,13 using Euclid's algorithm

Step 1: Since 65 > 12, we apply the division lemma to 65 and 12, to get

65 = 12 x 5 + 5

Step 2: Since the reminder 12 ≠ 0, we apply division lemma to 5 and 12, to get

12 = 5 x 2 + 2

Step 3: We consider the new divisor 5 and the new remainder 2, and apply the division lemma to get

5 = 2 x 2 + 1

We consider the new divisor 2 and the new remainder 1, and apply the division lemma to get

2 = 1 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 65 and 12 is 1

Notice that 1 = HCF(2,1) = HCF(5,2) = HCF(12,5) = HCF(65,12) .


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

Step 1: Since 13 > 1, we apply the division lemma to 13 and 1, to get

13 = 1 x 13 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 13 is 1

Notice that 1 = HCF(13,1) .

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Frequently Asked Questions on HCF of 65, 12, 13 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 65, 12, 13?

Answer: HCF of 65, 12, 13 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 65, 12, 13 using Euclid's Algorithm?

Answer: For arbitrary numbers 65, 12, 13 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.