Highest Common Factor of 370, 843, 861 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 370, 843, 861 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 370, 843, 861 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 370, 843, 861 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 370, 843, 861 is 1.

HCF(370, 843, 861) = 1

HCF of 370, 843, 861 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 370, 843, 861 is 1.

Highest Common Factor of 370,843,861 using Euclid's algorithm

Highest Common Factor of 370,843,861 is 1

Step 1: Since 843 > 370, we apply the division lemma to 843 and 370, to get

843 = 370 x 2 + 103

Step 2: Since the reminder 370 ≠ 0, we apply division lemma to 103 and 370, to get

370 = 103 x 3 + 61

Step 3: We consider the new divisor 103 and the new remainder 61, and apply the division lemma to get

103 = 61 x 1 + 42

We consider the new divisor 61 and the new remainder 42,and apply the division lemma to get

61 = 42 x 1 + 19

We consider the new divisor 42 and the new remainder 19,and apply the division lemma to get

42 = 19 x 2 + 4

We consider the new divisor 19 and the new remainder 4,and apply the division lemma to get

19 = 4 x 4 + 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 370 and 843 is 1

Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(19,4) = HCF(42,19) = HCF(61,42) = HCF(103,61) = HCF(370,103) = HCF(843,370) .

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

Step 1: Since 861 > 1, we apply the division lemma to 861 and 1, to get

861 = 1 x 861 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 861 is 1

Notice that 1 = HCF(861,1) .

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Frequently Asked Questions on HCF of 370, 843, 861 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 370, 843, 861?

Answer: HCF of 370, 843, 861 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 370, 843, 861 using Euclid's Algorithm?

Answer: For arbitrary numbers 370, 843, 861 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.