Highest Common Factor of 702, 370, 643 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 702, 370, 643 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 702, 370, 643 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 702, 370, 643 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 702, 370, 643 is 1.

HCF(702, 370, 643) = 1

HCF of 702, 370, 643 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 702, 370, 643 is 1.

Highest Common Factor of 702,370,643 using Euclid's algorithm

Highest Common Factor of 702,370,643 is 1

Step 1: Since 702 > 370, we apply the division lemma to 702 and 370, to get

702 = 370 x 1 + 332

Step 2: Since the reminder 370 ≠ 0, we apply division lemma to 332 and 370, to get

370 = 332 x 1 + 38

Step 3: We consider the new divisor 332 and the new remainder 38, and apply the division lemma to get

332 = 38 x 8 + 28

We consider the new divisor 38 and the new remainder 28,and apply the division lemma to get

38 = 28 x 1 + 10

We consider the new divisor 28 and the new remainder 10,and apply the division lemma to get

28 = 10 x 2 + 8

We consider the new divisor 10 and the new remainder 8,and apply the division lemma to get

10 = 8 x 1 + 2

We consider the new divisor 8 and the new remainder 2,and apply the division lemma to get

8 = 2 x 4 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 702 and 370 is 2

Notice that 2 = HCF(8,2) = HCF(10,8) = HCF(28,10) = HCF(38,28) = HCF(332,38) = HCF(370,332) = HCF(702,370) .

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

Step 1: Since 643 > 2, we apply the division lemma to 643 and 2, to get

643 = 2 x 321 + 1

Step 2: Since the reminder 2 ≠ 0, we apply division lemma to 1 and 2, 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 2 and 643 is 1

Notice that 1 = HCF(2,1) = HCF(643,2) .

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Frequently Asked Questions on HCF of 702, 370, 643 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 702, 370, 643?

Answer: HCF of 702, 370, 643 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 702, 370, 643 using Euclid's Algorithm?

Answer: For arbitrary numbers 702, 370, 643 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.