Highest Common Factor of 955, 621, 991 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 955, 621, 991 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 955, 621, 991 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 955, 621, 991 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 955, 621, 991 is 1.

HCF(955, 621, 991) = 1

HCF of 955, 621, 991 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 955, 621, 991 is 1.

Highest Common Factor of 955,621,991 using Euclid's algorithm

Highest Common Factor of 955,621,991 is 1

Step 1: Since 955 > 621, we apply the division lemma to 955 and 621, to get

955 = 621 x 1 + 334

Step 2: Since the reminder 621 ≠ 0, we apply division lemma to 334 and 621, to get

621 = 334 x 1 + 287

Step 3: We consider the new divisor 334 and the new remainder 287, and apply the division lemma to get

334 = 287 x 1 + 47

We consider the new divisor 287 and the new remainder 47,and apply the division lemma to get

287 = 47 x 6 + 5

We consider the new divisor 47 and the new remainder 5,and apply the division lemma to get

47 = 5 x 9 + 2

We consider the new divisor 5 and the new remainder 2,and apply the division lemma to get

5 = 2 x 2 + 1

We consider the new divisor 2 and the new remainder 1,and apply the division lemma 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 955 and 621 is 1

Notice that 1 = HCF(2,1) = HCF(5,2) = HCF(47,5) = HCF(287,47) = HCF(334,287) = HCF(621,334) = HCF(955,621) .

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

Step 1: Since 991 > 1, we apply the division lemma to 991 and 1, to get

991 = 1 x 991 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 991 is 1

Notice that 1 = HCF(991,1) .

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Frequently Asked Questions on HCF of 955, 621, 991 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 955, 621, 991?

Answer: HCF of 955, 621, 991 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 955, 621, 991 using Euclid's Algorithm?

Answer: For arbitrary numbers 955, 621, 991 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.