Highest Common Factor of 798, 551 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 798, 551 i.e. 19 the largest integer that leaves a remainder zero for all numbers.

HCF of 798, 551 is 19 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 798, 551 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 798, 551 is 19.

HCF(798, 551) = 19

HCF of 798, 551 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 798, 551 is 19.

Highest Common Factor of 798,551 using Euclid's algorithm

Highest Common Factor of 798,551 is 19

Step 1: Since 798 > 551, we apply the division lemma to 798 and 551, to get

798 = 551 x 1 + 247

Step 2: Since the reminder 551 ≠ 0, we apply division lemma to 247 and 551, to get

551 = 247 x 2 + 57

Step 3: We consider the new divisor 247 and the new remainder 57, and apply the division lemma to get

247 = 57 x 4 + 19

We consider the new divisor 57 and the new remainder 19, and apply the division lemma to get

57 = 19 x 3 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 19, the HCF of 798 and 551 is 19

Notice that 19 = HCF(57,19) = HCF(247,57) = HCF(551,247) = HCF(798,551) .

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Frequently Asked Questions on HCF of 798, 551 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 798, 551?

Answer: HCF of 798, 551 is 19 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 798, 551 using Euclid's Algorithm?

Answer: For arbitrary numbers 798, 551 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.