Highest Common Factor of 63, 42, 83, 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 63, 42, 83, 965 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 63, 42, 83, 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 63, 42, 83, 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 63, 42, 83, 965 is 1.

HCF(63, 42, 83, 965) = 1

HCF of 63, 42, 83, 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 63, 42, 83, 965 is 1.

Highest Common Factor of 63,42,83,965 using Euclid's algorithm

Highest Common Factor of 63,42,83,965 is 1

Step 1: Since 63 > 42, we apply the division lemma to 63 and 42, to get

63 = 42 x 1 + 21

Step 2: Since the reminder 42 ≠ 0, we apply division lemma to 21 and 42, to get

42 = 21 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 21, the HCF of 63 and 42 is 21

Notice that 21 = HCF(42,21) = HCF(63,42) .


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

Step 1: Since 83 > 21, we apply the division lemma to 83 and 21, to get

83 = 21 x 3 + 20

Step 2: Since the reminder 21 ≠ 0, we apply division lemma to 20 and 21, to get

21 = 20 x 1 + 1

Step 3: We consider the new divisor 20 and the new remainder 1, and apply the division lemma to get

20 = 1 x 20 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 21 and 83 is 1

Notice that 1 = HCF(20,1) = HCF(21,20) = HCF(83,21) .


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

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

965 = 1 x 965 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 965 is 1

Notice that 1 = HCF(965,1) .

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Frequently Asked Questions on HCF of 63, 42, 83, 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 63, 42, 83, 965?

Answer: HCF of 63, 42, 83, 965 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 63, 42, 83, 965 using Euclid's Algorithm?

Answer: For arbitrary numbers 63, 42, 83, 965 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.