Highest Common Factor of 999, 397, 661 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 999, 397, 661 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 999, 397, 661 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 999, 397, 661 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 999, 397, 661 is 1.

HCF(999, 397, 661) = 1

HCF of 999, 397, 661 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 999, 397, 661 is 1.

Highest Common Factor of 999,397,661 using Euclid's algorithm

Highest Common Factor of 999,397,661 is 1

Step 1: Since 999 > 397, we apply the division lemma to 999 and 397, to get

999 = 397 x 2 + 205

Step 2: Since the reminder 397 ≠ 0, we apply division lemma to 205 and 397, to get

397 = 205 x 1 + 192

Step 3: We consider the new divisor 205 and the new remainder 192, and apply the division lemma to get

205 = 192 x 1 + 13

We consider the new divisor 192 and the new remainder 13,and apply the division lemma to get

192 = 13 x 14 + 10

We consider the new divisor 13 and the new remainder 10,and apply the division lemma to get

13 = 10 x 1 + 3

We consider the new divisor 10 and the new remainder 3,and apply the division lemma to get

10 = 3 x 3 + 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 999 and 397 is 1

Notice that 1 = HCF(3,1) = HCF(10,3) = HCF(13,10) = HCF(192,13) = HCF(205,192) = HCF(397,205) = HCF(999,397) .

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

Step 1: Since 661 > 1, we apply the division lemma to 661 and 1, to get

661 = 1 x 661 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 661 is 1

Notice that 1 = HCF(661,1) .

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Frequently Asked Questions on HCF of 999, 397, 661 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 999, 397, 661?

Answer: HCF of 999, 397, 661 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 999, 397, 661 using Euclid's Algorithm?

Answer: For arbitrary numbers 999, 397, 661 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.