Highest Common Factor of 688, 900, 647 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 688, 900, 647 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 688, 900, 647 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 688, 900, 647 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 688, 900, 647 is 1.

HCF(688, 900, 647) = 1

HCF of 688, 900, 647 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 688, 900, 647 is 1.

Highest Common Factor of 688,900,647 using Euclid's algorithm

Highest Common Factor of 688,900,647 is 1

Step 1: Since 900 > 688, we apply the division lemma to 900 and 688, to get

900 = 688 x 1 + 212

Step 2: Since the reminder 688 ≠ 0, we apply division lemma to 212 and 688, to get

688 = 212 x 3 + 52

Step 3: We consider the new divisor 212 and the new remainder 52, and apply the division lemma to get

212 = 52 x 4 + 4

We consider the new divisor 52 and the new remainder 4, and apply the division lemma to get

52 = 4 x 13 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 4, the HCF of 688 and 900 is 4

Notice that 4 = HCF(52,4) = HCF(212,52) = HCF(688,212) = HCF(900,688) .


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

Step 1: Since 647 > 4, we apply the division lemma to 647 and 4, to get

647 = 4 x 161 + 3

Step 2: Since the reminder 4 ≠ 0, we apply division lemma to 3 and 4, to get

4 = 3 x 1 + 1

Step 3: 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 4 and 647 is 1

Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(647,4) .

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Frequently Asked Questions on HCF of 688, 900, 647 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 688, 900, 647?

Answer: HCF of 688, 900, 647 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 688, 900, 647 using Euclid's Algorithm?

Answer: For arbitrary numbers 688, 900, 647 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.