Highest Common Factor of 109, 500, 668 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 109, 500, 668 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 109, 500, 668 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 109, 500, 668 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 109, 500, 668 is 1.

HCF(109, 500, 668) = 1

HCF of 109, 500, 668 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 109, 500, 668 is 1.

Highest Common Factor of 109,500,668 using Euclid's algorithm

Highest Common Factor of 109,500,668 is 1

Step 1: Since 500 > 109, we apply the division lemma to 500 and 109, to get

500 = 109 x 4 + 64

Step 2: Since the reminder 109 ≠ 0, we apply division lemma to 64 and 109, to get

109 = 64 x 1 + 45

Step 3: We consider the new divisor 64 and the new remainder 45, and apply the division lemma to get

64 = 45 x 1 + 19

We consider the new divisor 45 and the new remainder 19,and apply the division lemma to get

45 = 19 x 2 + 7

We consider the new divisor 19 and the new remainder 7,and apply the division lemma to get

19 = 7 x 2 + 5

We consider the new divisor 7 and the new remainder 5,and apply the division lemma to get

7 = 5 x 1 + 2

We consider the new divisor 5 and the new remainder 2,and apply the division lemma to get

5 = 2 x 2 + 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 109 and 500 is 1

Notice that 1 = HCF(2,1) = HCF(5,2) = HCF(7,5) = HCF(19,7) = HCF(45,19) = HCF(64,45) = HCF(109,64) = HCF(500,109) .


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

Step 1: Since 668 > 1, we apply the division lemma to 668 and 1, to get

668 = 1 x 668 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 668 is 1

Notice that 1 = HCF(668,1) .

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Frequently Asked Questions on HCF of 109, 500, 668 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 109, 500, 668?

Answer: HCF of 109, 500, 668 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 109, 500, 668 using Euclid's Algorithm?

Answer: For arbitrary numbers 109, 500, 668 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.