Highest Common Factor of 317, 918, 628, 421 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 317, 918, 628, 421 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 317, 918, 628, 421 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 317, 918, 628, 421 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 317, 918, 628, 421 is 1.

HCF(317, 918, 628, 421) = 1

HCF of 317, 918, 628, 421 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 317, 918, 628, 421 is 1.

Highest Common Factor of 317,918,628,421 using Euclid's algorithm

Highest Common Factor of 317,918,628,421 is 1

Step 1: Since 918 > 317, we apply the division lemma to 918 and 317, to get

918 = 317 x 2 + 284

Step 2: Since the reminder 317 ≠ 0, we apply division lemma to 284 and 317, to get

317 = 284 x 1 + 33

Step 3: We consider the new divisor 284 and the new remainder 33, and apply the division lemma to get

284 = 33 x 8 + 20

We consider the new divisor 33 and the new remainder 20,and apply the division lemma to get

33 = 20 x 1 + 13

We consider the new divisor 20 and the new remainder 13,and apply the division lemma to get

20 = 13 x 1 + 7

We consider the new divisor 13 and the new remainder 7,and apply the division lemma to get

13 = 7 x 1 + 6

We consider the new divisor 7 and the new remainder 6,and apply the division lemma to get

7 = 6 x 1 + 1

We consider the new divisor 6 and the new remainder 1,and apply the division lemma to get

6 = 1 x 6 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 317 and 918 is 1

Notice that 1 = HCF(6,1) = HCF(7,6) = HCF(13,7) = HCF(20,13) = HCF(33,20) = HCF(284,33) = HCF(317,284) = HCF(918,317) .

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

Step 1: Since 628 > 1, we apply the division lemma to 628 and 1, to get

628 = 1 x 628 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 628 is 1

Notice that 1 = HCF(628,1) .

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

Step 1: Since 421 > 1, we apply the division lemma to 421 and 1, to get

421 = 1 x 421 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 421 is 1

Notice that 1 = HCF(421,1) .

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Frequently Asked Questions on HCF of 317, 918, 628, 421 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 317, 918, 628, 421?

Answer: HCF of 317, 918, 628, 421 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 317, 918, 628, 421 using Euclid's Algorithm?

Answer: For arbitrary numbers 317, 918, 628, 421 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.