Highest Common Factor of 428, 685, 10, 365 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 428, 685, 10, 365 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 428, 685, 10, 365 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 428, 685, 10, 365 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 428, 685, 10, 365 is 1.

HCF(428, 685, 10, 365) = 1

HCF of 428, 685, 10, 365 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 428, 685, 10, 365 is 1.

Highest Common Factor of 428,685,10,365 using Euclid's algorithm

Highest Common Factor of 428,685,10,365 is 1

Step 1: Since 685 > 428, we apply the division lemma to 685 and 428, to get

685 = 428 x 1 + 257

Step 2: Since the reminder 428 ≠ 0, we apply division lemma to 257 and 428, to get

428 = 257 x 1 + 171

Step 3: We consider the new divisor 257 and the new remainder 171, and apply the division lemma to get

257 = 171 x 1 + 86

We consider the new divisor 171 and the new remainder 86,and apply the division lemma to get

171 = 86 x 1 + 85

We consider the new divisor 86 and the new remainder 85,and apply the division lemma to get

86 = 85 x 1 + 1

We consider the new divisor 85 and the new remainder 1,and apply the division lemma to get

85 = 1 x 85 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 428 and 685 is 1

Notice that 1 = HCF(85,1) = HCF(86,85) = HCF(171,86) = HCF(257,171) = HCF(428,257) = HCF(685,428) .


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

Step 1: Since 10 > 1, we apply the division lemma to 10 and 1, to get

10 = 1 x 10 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 10 is 1

Notice that 1 = HCF(10,1) .


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

Step 1: Since 365 > 1, we apply the division lemma to 365 and 1, to get

365 = 1 x 365 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 365 is 1

Notice that 1 = HCF(365,1) .

HCF using Euclid's Algorithm Calculation Examples

Frequently Asked Questions on HCF of 428, 685, 10, 365 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 428, 685, 10, 365?

Answer: HCF of 428, 685, 10, 365 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 428, 685, 10, 365 using Euclid's Algorithm?

Answer: For arbitrary numbers 428, 685, 10, 365 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.