Highest Common Factor of 869, 989, 90 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 869, 989, 90 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 869, 989, 90 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 869, 989, 90 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 869, 989, 90 is 1.

HCF(869, 989, 90) = 1

HCF of 869, 989, 90 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 869, 989, 90 is 1.

Highest Common Factor of 869,989,90 using Euclid's algorithm

Highest Common Factor of 869,989,90 is 1

Step 1: Since 989 > 869, we apply the division lemma to 989 and 869, to get

989 = 869 x 1 + 120

Step 2: Since the reminder 869 ≠ 0, we apply division lemma to 120 and 869, to get

869 = 120 x 7 + 29

Step 3: We consider the new divisor 120 and the new remainder 29, and apply the division lemma to get

120 = 29 x 4 + 4

We consider the new divisor 29 and the new remainder 4,and apply the division lemma to get

29 = 4 x 7 + 1

We consider the new divisor 4 and the new remainder 1,and apply the division lemma to get

4 = 1 x 4 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 869 and 989 is 1

Notice that 1 = HCF(4,1) = HCF(29,4) = HCF(120,29) = HCF(869,120) = HCF(989,869) .

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

Step 1: Since 90 > 1, we apply the division lemma to 90 and 1, to get

90 = 1 x 90 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 90 is 1

Notice that 1 = HCF(90,1) .

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Frequently Asked Questions on HCF of 869, 989, 90 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 869, 989, 90?

Answer: HCF of 869, 989, 90 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 869, 989, 90 using Euclid's Algorithm?

Answer: For arbitrary numbers 869, 989, 90 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.