Highest Common Factor of 804, 442, 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 804, 442, 647 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 804, 442, 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 804, 442, 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 804, 442, 647 is 1.

HCF(804, 442, 647) = 1

HCF of 804, 442, 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 804, 442, 647 is 1.

Highest Common Factor of 804,442,647 using Euclid's algorithm

Highest Common Factor of 804,442,647 is 1

Step 1: Since 804 > 442, we apply the division lemma to 804 and 442, to get

804 = 442 x 1 + 362

Step 2: Since the reminder 442 ≠ 0, we apply division lemma to 362 and 442, to get

442 = 362 x 1 + 80

Step 3: We consider the new divisor 362 and the new remainder 80, and apply the division lemma to get

362 = 80 x 4 + 42

We consider the new divisor 80 and the new remainder 42,and apply the division lemma to get

80 = 42 x 1 + 38

We consider the new divisor 42 and the new remainder 38,and apply the division lemma to get

42 = 38 x 1 + 4

We consider the new divisor 38 and the new remainder 4,and apply the division lemma to get

38 = 4 x 9 + 2

We consider the new divisor 4 and the new remainder 2,and apply the division lemma to get

4 = 2 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 804 and 442 is 2

Notice that 2 = HCF(4,2) = HCF(38,4) = HCF(42,38) = HCF(80,42) = HCF(362,80) = HCF(442,362) = HCF(804,442) .

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

Step 1: Since 647 > 2, we apply the division lemma to 647 and 2, to get

647 = 2 x 323 + 1

Step 2: Since the reminder 2 ≠ 0, we apply division lemma to 1 and 2, 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 2 and 647 is 1

Notice that 1 = HCF(2,1) = HCF(647,2) .

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Frequently Asked Questions on HCF of 804, 442, 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 804, 442, 647?

Answer: HCF of 804, 442, 647 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 804, 442, 647 using Euclid's Algorithm?

Answer: For arbitrary numbers 804, 442, 647 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.