Highest Common Factor of 403, 658, 245 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 403, 658, 245 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 403, 658, 245 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 403, 658, 245 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 403, 658, 245 is 1.

HCF(403, 658, 245) = 1

HCF of 403, 658, 245 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 403, 658, 245 is 1.

Highest Common Factor of 403,658,245 using Euclid's algorithm

Highest Common Factor of 403,658,245 is 1

Step 1: Since 658 > 403, we apply the division lemma to 658 and 403, to get

658 = 403 x 1 + 255

Step 2: Since the reminder 403 ≠ 0, we apply division lemma to 255 and 403, to get

403 = 255 x 1 + 148

Step 3: We consider the new divisor 255 and the new remainder 148, and apply the division lemma to get

255 = 148 x 1 + 107

We consider the new divisor 148 and the new remainder 107,and apply the division lemma to get

148 = 107 x 1 + 41

We consider the new divisor 107 and the new remainder 41,and apply the division lemma to get

107 = 41 x 2 + 25

We consider the new divisor 41 and the new remainder 25,and apply the division lemma to get

41 = 25 x 1 + 16

We consider the new divisor 25 and the new remainder 16,and apply the division lemma to get

25 = 16 x 1 + 9

We consider the new divisor 16 and the new remainder 9,and apply the division lemma to get

16 = 9 x 1 + 7

We consider the new divisor 9 and the new remainder 7,and apply the division lemma to get

9 = 7 x 1 + 2

We consider the new divisor 7 and the new remainder 2,and apply the division lemma to get

7 = 2 x 3 + 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 403 and 658 is 1

Notice that 1 = HCF(2,1) = HCF(7,2) = HCF(9,7) = HCF(16,9) = HCF(25,16) = HCF(41,25) = HCF(107,41) = HCF(148,107) = HCF(255,148) = HCF(403,255) = HCF(658,403) .

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

Step 1: Since 245 > 1, we apply the division lemma to 245 and 1, to get

245 = 1 x 245 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 245 is 1

Notice that 1 = HCF(245,1) .

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Frequently Asked Questions on HCF of 403, 658, 245 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 403, 658, 245?

Answer: HCF of 403, 658, 245 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 403, 658, 245 using Euclid's Algorithm?

Answer: For arbitrary numbers 403, 658, 245 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.