Highest Common Factor of 781, 491, 890, 624 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 781, 491, 890, 624 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 781, 491, 890, 624 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 781, 491, 890, 624 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 781, 491, 890, 624 is 1.

HCF(781, 491, 890, 624) = 1

HCF of 781, 491, 890, 624 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 781, 491, 890, 624 is 1.

Highest Common Factor of 781,491,890,624 using Euclid's algorithm

Highest Common Factor of 781,491,890,624 is 1

Step 1: Since 781 > 491, we apply the division lemma to 781 and 491, to get

781 = 491 x 1 + 290

Step 2: Since the reminder 491 ≠ 0, we apply division lemma to 290 and 491, to get

491 = 290 x 1 + 201

Step 3: We consider the new divisor 290 and the new remainder 201, and apply the division lemma to get

290 = 201 x 1 + 89

We consider the new divisor 201 and the new remainder 89,and apply the division lemma to get

201 = 89 x 2 + 23

We consider the new divisor 89 and the new remainder 23,and apply the division lemma to get

89 = 23 x 3 + 20

We consider the new divisor 23 and the new remainder 20,and apply the division lemma to get

23 = 20 x 1 + 3

We consider the new divisor 20 and the new remainder 3,and apply the division lemma to get

20 = 3 x 6 + 2

We consider the new divisor 3 and the new remainder 2,and apply the division lemma to get

3 = 2 x 1 + 1

We consider the new divisor 2 and the new remainder 1,and apply the division lemma 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 781 and 491 is 1

Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(20,3) = HCF(23,20) = HCF(89,23) = HCF(201,89) = HCF(290,201) = HCF(491,290) = HCF(781,491) .

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

Step 1: Since 890 > 1, we apply the division lemma to 890 and 1, to get

890 = 1 x 890 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 890 is 1

Notice that 1 = HCF(890,1) .

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

Step 1: Since 624 > 1, we apply the division lemma to 624 and 1, to get

624 = 1 x 624 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 624 is 1

Notice that 1 = HCF(624,1) .

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Frequently Asked Questions on HCF of 781, 491, 890, 624 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 781, 491, 890, 624?

Answer: HCF of 781, 491, 890, 624 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 781, 491, 890, 624 using Euclid's Algorithm?

Answer: For arbitrary numbers 781, 491, 890, 624 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.