Highest Common Factor of 570, 645, 581 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 570, 645, 581 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 570, 645, 581 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 570, 645, 581 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 570, 645, 581 is 1.

HCF(570, 645, 581) = 1

HCF of 570, 645, 581 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 570, 645, 581 is 1.

Highest Common Factor of 570,645,581 using Euclid's algorithm

Highest Common Factor of 570,645,581 is 1

Step 1: Since 645 > 570, we apply the division lemma to 645 and 570, to get

645 = 570 x 1 + 75

Step 2: Since the reminder 570 ≠ 0, we apply division lemma to 75 and 570, to get

570 = 75 x 7 + 45

Step 3: We consider the new divisor 75 and the new remainder 45, and apply the division lemma to get

75 = 45 x 1 + 30

We consider the new divisor 45 and the new remainder 30,and apply the division lemma to get

45 = 30 x 1 + 15

We consider the new divisor 30 and the new remainder 15,and apply the division lemma to get

30 = 15 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 15, the HCF of 570 and 645 is 15

Notice that 15 = HCF(30,15) = HCF(45,30) = HCF(75,45) = HCF(570,75) = HCF(645,570) .

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

Step 1: Since 581 > 15, we apply the division lemma to 581 and 15, to get

581 = 15 x 38 + 11

Step 2: Since the reminder 15 ≠ 0, we apply division lemma to 11 and 15, to get

15 = 11 x 1 + 4

Step 3: We consider the new divisor 11 and the new remainder 4, and apply the division lemma to get

11 = 4 x 2 + 3

We consider the new divisor 4 and the new remainder 3,and apply the division lemma to get

4 = 3 x 1 + 1

We consider the new divisor 3 and the new remainder 1,and apply the division lemma to get

3 = 1 x 3 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 15 and 581 is 1

Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(11,4) = HCF(15,11) = HCF(581,15) .

HCF using Euclid's Algorithm Calculation Examples

Here are some samples of HCF using Euclid's Algorithm calculations.

Frequently Asked Questions on HCF of 570, 645, 581 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 570, 645, 581?

Answer: HCF of 570, 645, 581 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 570, 645, 581 using Euclid's Algorithm?

Answer: For arbitrary numbers 570, 645, 581 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.