Highest Common Factor of 648, 455, 386 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, 455, 386 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 648, 455, 386 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, 455, 386 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, 455, 386 is 1.

HCF(648, 455, 386) = 1

HCF of 648, 455, 386 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, 455, 386 is 1.

Highest Common Factor of 648,455,386 using Euclid's algorithm

Highest Common Factor of 648,455,386 is 1

Step 1: Since 648 > 455, we apply the division lemma to 648 and 455, to get

648 = 455 x 1 + 193

Step 2: Since the reminder 455 ≠ 0, we apply division lemma to 193 and 455, to get

455 = 193 x 2 + 69

Step 3: We consider the new divisor 193 and the new remainder 69, and apply the division lemma to get

193 = 69 x 2 + 55

We consider the new divisor 69 and the new remainder 55,and apply the division lemma to get

69 = 55 x 1 + 14

We consider the new divisor 55 and the new remainder 14,and apply the division lemma to get

55 = 14 x 3 + 13

We consider the new divisor 14 and the new remainder 13,and apply the division lemma to get

14 = 13 x 1 + 1

We consider the new divisor 13 and the new remainder 1,and apply the division lemma to get

13 = 1 x 13 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 648 and 455 is 1

Notice that 1 = HCF(13,1) = HCF(14,13) = HCF(55,14) = HCF(69,55) = HCF(193,69) = HCF(455,193) = HCF(648,455) .

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

Step 1: Since 386 > 1, we apply the division lemma to 386 and 1, to get

386 = 1 x 386 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 386 is 1

Notice that 1 = HCF(386,1) .

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Frequently Asked Questions on HCF of 648, 455, 386 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, 455, 386?

Answer: HCF of 648, 455, 386 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 648, 455, 386 using Euclid's Algorithm?

Answer: For arbitrary numbers 648, 455, 386 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.