Highest Common Factor of 138, 499, 198 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 138, 499, 198 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 138, 499, 198 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 138, 499, 198 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 138, 499, 198 is 1.

HCF(138, 499, 198) = 1

HCF of 138, 499, 198 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 138, 499, 198 is 1.

Highest Common Factor of 138,499,198 using Euclid's algorithm

Highest Common Factor of 138,499,198 is 1

Step 1: Since 499 > 138, we apply the division lemma to 499 and 138, to get

499 = 138 x 3 + 85

Step 2: Since the reminder 138 ≠ 0, we apply division lemma to 85 and 138, to get

138 = 85 x 1 + 53

Step 3: We consider the new divisor 85 and the new remainder 53, and apply the division lemma to get

85 = 53 x 1 + 32

We consider the new divisor 53 and the new remainder 32,and apply the division lemma to get

53 = 32 x 1 + 21

We consider the new divisor 32 and the new remainder 21,and apply the division lemma to get

32 = 21 x 1 + 11

We consider the new divisor 21 and the new remainder 11,and apply the division lemma to get

21 = 11 x 1 + 10

We consider the new divisor 11 and the new remainder 10,and apply the division lemma to get

11 = 10 x 1 + 1

We consider the new divisor 10 and the new remainder 1,and apply the division lemma to get

10 = 1 x 10 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 138 and 499 is 1

Notice that 1 = HCF(10,1) = HCF(11,10) = HCF(21,11) = HCF(32,21) = HCF(53,32) = HCF(85,53) = HCF(138,85) = HCF(499,138) .

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

Step 1: Since 198 > 1, we apply the division lemma to 198 and 1, to get

198 = 1 x 198 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 198 is 1

Notice that 1 = HCF(198,1) .

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Frequently Asked Questions on HCF of 138, 499, 198 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 138, 499, 198?

Answer: HCF of 138, 499, 198 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 138, 499, 198 using Euclid's Algorithm?

Answer: For arbitrary numbers 138, 499, 198 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.