Highest Common Factor of 418, 659 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 418, 659 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 418, 659 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 418, 659 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 418, 659 is 1.

HCF(418, 659) = 1

HCF of 418, 659 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 418, 659 is 1.

Highest Common Factor of 418,659 using Euclid's algorithm

Highest Common Factor of 418,659 is 1

Step 1: Since 659 > 418, we apply the division lemma to 659 and 418, to get

659 = 418 x 1 + 241

Step 2: Since the reminder 418 ≠ 0, we apply division lemma to 241 and 418, to get

418 = 241 x 1 + 177

Step 3: We consider the new divisor 241 and the new remainder 177, and apply the division lemma to get

241 = 177 x 1 + 64

We consider the new divisor 177 and the new remainder 64,and apply the division lemma to get

177 = 64 x 2 + 49

We consider the new divisor 64 and the new remainder 49,and apply the division lemma to get

64 = 49 x 1 + 15

We consider the new divisor 49 and the new remainder 15,and apply the division lemma to get

49 = 15 x 3 + 4

We consider the new divisor 15 and the new remainder 4,and apply the division lemma to get

15 = 4 x 3 + 3

We consider the new divisor 4 and the new remainder 3,and apply the division lemma to get

4 = 3 x 1 + 1

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 418 and 659 is 1

Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(15,4) = HCF(49,15) = HCF(64,49) = HCF(177,64) = HCF(241,177) = HCF(418,241) = HCF(659,418) .

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Frequently Asked Questions on HCF of 418, 659 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 418, 659?

Answer: HCF of 418, 659 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 418, 659 using Euclid's Algorithm?

Answer: For arbitrary numbers 418, 659 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.