Highest Common Factor of 202, 370, 721 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 202, 370, 721 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 202, 370, 721 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 202, 370, 721 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 202, 370, 721 is 1.

HCF(202, 370, 721) = 1

HCF of 202, 370, 721 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 202, 370, 721 is 1.

Highest Common Factor of 202,370,721 using Euclid's algorithm

Highest Common Factor of 202,370,721 is 1

Step 1: Since 370 > 202, we apply the division lemma to 370 and 202, to get

370 = 202 x 1 + 168

Step 2: Since the reminder 202 ≠ 0, we apply division lemma to 168 and 202, to get

202 = 168 x 1 + 34

Step 3: We consider the new divisor 168 and the new remainder 34, and apply the division lemma to get

168 = 34 x 4 + 32

We consider the new divisor 34 and the new remainder 32,and apply the division lemma to get

34 = 32 x 1 + 2

We consider the new divisor 32 and the new remainder 2,and apply the division lemma to get

32 = 2 x 16 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 202 and 370 is 2

Notice that 2 = HCF(32,2) = HCF(34,32) = HCF(168,34) = HCF(202,168) = HCF(370,202) .

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

Step 1: Since 721 > 2, we apply the division lemma to 721 and 2, to get

721 = 2 x 360 + 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 721 is 1

Notice that 1 = HCF(2,1) = HCF(721,2) .

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Frequently Asked Questions on HCF of 202, 370, 721 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 202, 370, 721?

Answer: HCF of 202, 370, 721 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 202, 370, 721 using Euclid's Algorithm?

Answer: For arbitrary numbers 202, 370, 721 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.