Highest Common Factor of 865, 510, 634, 161 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 865, 510, 634, 161 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 865, 510, 634, 161 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 865, 510, 634, 161 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 865, 510, 634, 161 is 1.

HCF(865, 510, 634, 161) = 1

HCF of 865, 510, 634, 161 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 865, 510, 634, 161 is 1.

Highest Common Factor of 865,510,634,161 using Euclid's algorithm

Highest Common Factor of 865,510,634,161 is 1

Step 1: Since 865 > 510, we apply the division lemma to 865 and 510, to get

865 = 510 x 1 + 355

Step 2: Since the reminder 510 ≠ 0, we apply division lemma to 355 and 510, to get

510 = 355 x 1 + 155

Step 3: We consider the new divisor 355 and the new remainder 155, and apply the division lemma to get

355 = 155 x 2 + 45

We consider the new divisor 155 and the new remainder 45,and apply the division lemma to get

155 = 45 x 3 + 20

We consider the new divisor 45 and the new remainder 20,and apply the division lemma to get

45 = 20 x 2 + 5

We consider the new divisor 20 and the new remainder 5,and apply the division lemma to get

20 = 5 x 4 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 865 and 510 is 5

Notice that 5 = HCF(20,5) = HCF(45,20) = HCF(155,45) = HCF(355,155) = HCF(510,355) = HCF(865,510) .


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

Step 1: Since 634 > 5, we apply the division lemma to 634 and 5, to get

634 = 5 x 126 + 4

Step 2: Since the reminder 5 ≠ 0, we apply division lemma to 4 and 5, to get

5 = 4 x 1 + 1

Step 3: We consider the new divisor 4 and the new remainder 1, and apply the division lemma to get

4 = 1 x 4 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 5 and 634 is 1

Notice that 1 = HCF(4,1) = HCF(5,4) = HCF(634,5) .


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

Step 1: Since 161 > 1, we apply the division lemma to 161 and 1, to get

161 = 1 x 161 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 161 is 1

Notice that 1 = HCF(161,1) .

HCF using Euclid's Algorithm Calculation Examples

Frequently Asked Questions on HCF of 865, 510, 634, 161 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 865, 510, 634, 161?

Answer: HCF of 865, 510, 634, 161 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 865, 510, 634, 161 using Euclid's Algorithm?

Answer: For arbitrary numbers 865, 510, 634, 161 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.