Highest Common Factor of 625, 974, 81 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 625, 974, 81 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 625, 974, 81 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 625, 974, 81 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 625, 974, 81 is 1.

HCF(625, 974, 81) = 1

HCF of 625, 974, 81 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 625, 974, 81 is 1.

Highest Common Factor of 625,974,81 using Euclid's algorithm

Highest Common Factor of 625,974,81 is 1

Step 1: Since 974 > 625, we apply the division lemma to 974 and 625, to get

974 = 625 x 1 + 349

Step 2: Since the reminder 625 ≠ 0, we apply division lemma to 349 and 625, to get

625 = 349 x 1 + 276

Step 3: We consider the new divisor 349 and the new remainder 276, and apply the division lemma to get

349 = 276 x 1 + 73

We consider the new divisor 276 and the new remainder 73,and apply the division lemma to get

276 = 73 x 3 + 57

We consider the new divisor 73 and the new remainder 57,and apply the division lemma to get

73 = 57 x 1 + 16

We consider the new divisor 57 and the new remainder 16,and apply the division lemma to get

57 = 16 x 3 + 9

We consider the new divisor 16 and the new remainder 9,and apply the division lemma to get

16 = 9 x 1 + 7

We consider the new divisor 9 and the new remainder 7,and apply the division lemma to get

9 = 7 x 1 + 2

We consider the new divisor 7 and the new remainder 2,and apply the division lemma to get

7 = 2 x 3 + 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 625 and 974 is 1

Notice that 1 = HCF(2,1) = HCF(7,2) = HCF(9,7) = HCF(16,9) = HCF(57,16) = HCF(73,57) = HCF(276,73) = HCF(349,276) = HCF(625,349) = HCF(974,625) .

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

Step 1: Since 81 > 1, we apply the division lemma to 81 and 1, to get

81 = 1 x 81 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 81 is 1

Notice that 1 = HCF(81,1) .

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Frequently Asked Questions on HCF of 625, 974, 81 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 625, 974, 81?

Answer: HCF of 625, 974, 81 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 625, 974, 81 using Euclid's Algorithm?

Answer: For arbitrary numbers 625, 974, 81 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.