Highest Common Factor of 661, 4430 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 661, 4430 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 661, 4430 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 661, 4430 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 661, 4430 is 1.

HCF(661, 4430) = 1

HCF of 661, 4430 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 661, 4430 is 1.

Highest Common Factor of 661,4430 using Euclid's algorithm

Highest Common Factor of 661,4430 is 1

Step 1: Since 4430 > 661, we apply the division lemma to 4430 and 661, to get

4430 = 661 x 6 + 464

Step 2: Since the reminder 661 ≠ 0, we apply division lemma to 464 and 661, to get

661 = 464 x 1 + 197

Step 3: We consider the new divisor 464 and the new remainder 197, and apply the division lemma to get

464 = 197 x 2 + 70

We consider the new divisor 197 and the new remainder 70,and apply the division lemma to get

197 = 70 x 2 + 57

We consider the new divisor 70 and the new remainder 57,and apply the division lemma to get

70 = 57 x 1 + 13

We consider the new divisor 57 and the new remainder 13,and apply the division lemma to get

57 = 13 x 4 + 5

We consider the new divisor 13 and the new remainder 5,and apply the division lemma to get

13 = 5 x 2 + 3

We consider the new divisor 5 and the new remainder 3,and apply the division lemma to get

5 = 3 x 1 + 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 661 and 4430 is 1

Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(5,3) = HCF(13,5) = HCF(57,13) = HCF(70,57) = HCF(197,70) = HCF(464,197) = HCF(661,464) = HCF(4430,661) .

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Frequently Asked Questions on HCF of 661, 4430 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 661, 4430?

Answer: HCF of 661, 4430 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 661, 4430 using Euclid's Algorithm?

Answer: For arbitrary numbers 661, 4430 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.