Highest Common Factor of 398, 703 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 398, 703 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 398, 703 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 398, 703 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 398, 703 is 1.

HCF(398, 703) = 1

HCF of 398, 703 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 398, 703 is 1.

Highest Common Factor of 398,703 using Euclid's algorithm

Highest Common Factor of 398,703 is 1

Step 1: Since 703 > 398, we apply the division lemma to 703 and 398, to get

703 = 398 x 1 + 305

Step 2: Since the reminder 398 ≠ 0, we apply division lemma to 305 and 398, to get

398 = 305 x 1 + 93

Step 3: We consider the new divisor 305 and the new remainder 93, and apply the division lemma to get

305 = 93 x 3 + 26

We consider the new divisor 93 and the new remainder 26,and apply the division lemma to get

93 = 26 x 3 + 15

We consider the new divisor 26 and the new remainder 15,and apply the division lemma to get

26 = 15 x 1 + 11

We consider the new divisor 15 and the new remainder 11,and apply the division lemma to get

15 = 11 x 1 + 4

We consider the new divisor 11 and the new remainder 4,and apply the division lemma to get

11 = 4 x 2 + 3

We consider the new divisor 4 and the new remainder 3,and apply the division lemma to get

4 = 3 x 1 + 1

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

3 = 1 x 3 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 398 and 703 is 1

Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(11,4) = HCF(15,11) = HCF(26,15) = HCF(93,26) = HCF(305,93) = HCF(398,305) = HCF(703,398) .

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Frequently Asked Questions on HCF of 398, 703 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 398, 703?

Answer: HCF of 398, 703 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 398, 703 using Euclid's Algorithm?

Answer: For arbitrary numbers 398, 703 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.