Highest Common Factor of 862, 642, 965 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 862, 642, 965 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 862, 642, 965 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 862, 642, 965 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 862, 642, 965 is 1.

HCF(862, 642, 965) = 1

HCF of 862, 642, 965 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 862, 642, 965 is 1.

Highest Common Factor of 862,642,965 using Euclid's algorithm

Highest Common Factor of 862,642,965 is 1

Step 1: Since 862 > 642, we apply the division lemma to 862 and 642, to get

862 = 642 x 1 + 220

Step 2: Since the reminder 642 ≠ 0, we apply division lemma to 220 and 642, to get

642 = 220 x 2 + 202

Step 3: We consider the new divisor 220 and the new remainder 202, and apply the division lemma to get

220 = 202 x 1 + 18

We consider the new divisor 202 and the new remainder 18,and apply the division lemma to get

202 = 18 x 11 + 4

We consider the new divisor 18 and the new remainder 4,and apply the division lemma to get

18 = 4 x 4 + 2

We consider the new divisor 4 and the new remainder 2,and apply the division lemma to get

4 = 2 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 862 and 642 is 2

Notice that 2 = HCF(4,2) = HCF(18,4) = HCF(202,18) = HCF(220,202) = HCF(642,220) = HCF(862,642) .

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

Step 1: Since 965 > 2, we apply the division lemma to 965 and 2, to get

965 = 2 x 482 + 1

Step 2: Since the reminder 2 ≠ 0, we apply division lemma to 1 and 2, 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 2 and 965 is 1

Notice that 1 = HCF(2,1) = HCF(965,2) .

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Frequently Asked Questions on HCF of 862, 642, 965 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 862, 642, 965?

Answer: HCF of 862, 642, 965 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 862, 642, 965 using Euclid's Algorithm?

Answer: For arbitrary numbers 862, 642, 965 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.