Highest Common Factor of 401, 491, 635 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 401, 491, 635 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 401, 491, 635 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 401, 491, 635 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 401, 491, 635 is 1.

HCF(401, 491, 635) = 1

HCF of 401, 491, 635 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 401, 491, 635 is 1.

Highest Common Factor of 401,491,635 using Euclid's algorithm

Highest Common Factor of 401,491,635 is 1

Step 1: Since 491 > 401, we apply the division lemma to 491 and 401, to get

491 = 401 x 1 + 90

Step 2: Since the reminder 401 ≠ 0, we apply division lemma to 90 and 401, to get

401 = 90 x 4 + 41

Step 3: We consider the new divisor 90 and the new remainder 41, and apply the division lemma to get

90 = 41 x 2 + 8

We consider the new divisor 41 and the new remainder 8,and apply the division lemma to get

41 = 8 x 5 + 1

We consider the new divisor 8 and the new remainder 1,and apply the division lemma to get

8 = 1 x 8 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 401 and 491 is 1

Notice that 1 = HCF(8,1) = HCF(41,8) = HCF(90,41) = HCF(401,90) = HCF(491,401) .


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

Step 1: Since 635 > 1, we apply the division lemma to 635 and 1, to get

635 = 1 x 635 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 635 is 1

Notice that 1 = HCF(635,1) .

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Frequently Asked Questions on HCF of 401, 491, 635 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 401, 491, 635?

Answer: HCF of 401, 491, 635 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 401, 491, 635 using Euclid's Algorithm?

Answer: For arbitrary numbers 401, 491, 635 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.