Highest Common Factor of 648, 997 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 648, 997 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 648, 997 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 648, 997 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 648, 997 is 1.

HCF(648, 997) = 1

HCF of 648, 997 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 648, 997 is 1.

Highest Common Factor of 648,997 using Euclid's algorithm

Highest Common Factor of 648,997 is 1

Step 1: Since 997 > 648, we apply the division lemma to 997 and 648, to get

997 = 648 x 1 + 349

Step 2: Since the reminder 648 ≠ 0, we apply division lemma to 349 and 648, to get

648 = 349 x 1 + 299

Step 3: We consider the new divisor 349 and the new remainder 299, and apply the division lemma to get

349 = 299 x 1 + 50

We consider the new divisor 299 and the new remainder 50,and apply the division lemma to get

299 = 50 x 5 + 49

We consider the new divisor 50 and the new remainder 49,and apply the division lemma to get

50 = 49 x 1 + 1

We consider the new divisor 49 and the new remainder 1,and apply the division lemma to get

49 = 1 x 49 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 648 and 997 is 1

Notice that 1 = HCF(49,1) = HCF(50,49) = HCF(299,50) = HCF(349,299) = HCF(648,349) = HCF(997,648) .

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Frequently Asked Questions on HCF of 648, 997 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 648, 997?

Answer: HCF of 648, 997 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 648, 997 using Euclid's Algorithm?

Answer: For arbitrary numbers 648, 997 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.