Highest Common Factor of 445, 721, 943 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 445, 721, 943 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 445, 721, 943 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 445, 721, 943 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 445, 721, 943 is 1.

HCF(445, 721, 943) = 1

HCF of 445, 721, 943 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 445, 721, 943 is 1.

Highest Common Factor of 445,721,943 using Euclid's algorithm

Highest Common Factor of 445,721,943 is 1

Step 1: Since 721 > 445, we apply the division lemma to 721 and 445, to get

721 = 445 x 1 + 276

Step 2: Since the reminder 445 ≠ 0, we apply division lemma to 276 and 445, to get

445 = 276 x 1 + 169

Step 3: We consider the new divisor 276 and the new remainder 169, and apply the division lemma to get

276 = 169 x 1 + 107

We consider the new divisor 169 and the new remainder 107,and apply the division lemma to get

169 = 107 x 1 + 62

We consider the new divisor 107 and the new remainder 62,and apply the division lemma to get

107 = 62 x 1 + 45

We consider the new divisor 62 and the new remainder 45,and apply the division lemma to get

62 = 45 x 1 + 17

We consider the new divisor 45 and the new remainder 17,and apply the division lemma to get

45 = 17 x 2 + 11

We consider the new divisor 17 and the new remainder 11,and apply the division lemma to get

17 = 11 x 1 + 6

We consider the new divisor 11 and the new remainder 6,and apply the division lemma to get

11 = 6 x 1 + 5

We consider the new divisor 6 and the new remainder 5,and apply the division lemma to get

6 = 5 x 1 + 1

We consider the new divisor 5 and the new remainder 1,and apply the division lemma to get

5 = 1 x 5 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 445 and 721 is 1

Notice that 1 = HCF(5,1) = HCF(6,5) = HCF(11,6) = HCF(17,11) = HCF(45,17) = HCF(62,45) = HCF(107,62) = HCF(169,107) = HCF(276,169) = HCF(445,276) = HCF(721,445) .

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

Step 1: Since 943 > 1, we apply the division lemma to 943 and 1, to get

943 = 1 x 943 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 943 is 1

Notice that 1 = HCF(943,1) .

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Frequently Asked Questions on HCF of 445, 721, 943 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 445, 721, 943?

Answer: HCF of 445, 721, 943 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 445, 721, 943 using Euclid's Algorithm?

Answer: For arbitrary numbers 445, 721, 943 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.