# Highest Common Factor of 31, 12, 16, 80 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 31, 12, 16, 80 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 31, 12, 16, 80 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 31, 12, 16, 80 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 31, 12, 16, 80 is 1.

HCF(31, 12, 16, 80) = 1

## HCF of 31, 12, 16, 80 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 31, 12, 16, 80 is 1. ### Highest Common Factor of 31,12,16,80 is 1

Step 1: Since 31 > 12, we apply the division lemma to 31 and 12, to get

31 = 12 x 2 + 7

Step 2: Since the reminder 12 ≠ 0, we apply division lemma to 7 and 12, to get

12 = 7 x 1 + 5

Step 3: We consider the new divisor 7 and the new remainder 5, and apply the division lemma to get

7 = 5 x 1 + 2

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 31 and 12 is 1

Notice that 1 = HCF(2,1) = HCF(5,2) = HCF(7,5) = HCF(12,7) = HCF(31,12) .

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

Step 1: Since 16 > 1, we apply the division lemma to 16 and 1, to get

16 = 1 x 16 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 16 is 1

Notice that 1 = HCF(16,1) .

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

Step 1: Since 80 > 1, we apply the division lemma to 80 and 1, to get

80 = 1 x 80 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 80 is 1

Notice that 1 = HCF(80,1) .

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### Frequently Asked Questions on HCF of 31, 12, 16, 80 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 31, 12, 16, 80?

Answer: HCF of 31, 12, 16, 80 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 31, 12, 16, 80 using Euclid's Algorithm?

Answer: For arbitrary numbers 31, 12, 16, 80 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.