Highest Common Factor of 648, 855, 430 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, 855, 430 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 648, 855, 430 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, 855, 430 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, 855, 430 is 1.

HCF(648, 855, 430) = 1

HCF of 648, 855, 430 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, 855, 430 is 1.

Highest Common Factor of 648,855,430 using Euclid's algorithm

Highest Common Factor of 648,855,430 is 1

Step 1: Since 855 > 648, we apply the division lemma to 855 and 648, to get

855 = 648 x 1 + 207

Step 2: Since the reminder 648 ≠ 0, we apply division lemma to 207 and 648, to get

648 = 207 x 3 + 27

Step 3: We consider the new divisor 207 and the new remainder 27, and apply the division lemma to get

207 = 27 x 7 + 18

We consider the new divisor 27 and the new remainder 18,and apply the division lemma to get

27 = 18 x 1 + 9

We consider the new divisor 18 and the new remainder 9,and apply the division lemma to get

18 = 9 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 9, the HCF of 648 and 855 is 9

Notice that 9 = HCF(18,9) = HCF(27,18) = HCF(207,27) = HCF(648,207) = HCF(855,648) .

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

Step 1: Since 430 > 9, we apply the division lemma to 430 and 9, to get

430 = 9 x 47 + 7

Step 2: Since the reminder 9 ≠ 0, we apply division lemma to 7 and 9, to get

9 = 7 x 1 + 2

Step 3: We consider the new divisor 7 and the new remainder 2, and apply the division lemma to get

7 = 2 x 3 + 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 9 and 430 is 1

Notice that 1 = HCF(2,1) = HCF(7,2) = HCF(9,7) = HCF(430,9) .

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Frequently Asked Questions on HCF of 648, 855, 430 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, 855, 430?

Answer: HCF of 648, 855, 430 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 648, 855, 430 using Euclid's Algorithm?

Answer: For arbitrary numbers 648, 855, 430 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.