Highest Common Factor of 555, 540, 155 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 555, 540, 155 i.e. 5 the largest integer that leaves a remainder zero for all numbers.

HCF of 555, 540, 155 is 5 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 555, 540, 155 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 555, 540, 155 is 5.

HCF(555, 540, 155) = 5

HCF of 555, 540, 155 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 555, 540, 155 is 5.

Highest Common Factor of 555,540,155 using Euclid's algorithm

Highest Common Factor of 555,540,155 is 5

Step 1: Since 555 > 540, we apply the division lemma to 555 and 540, to get

555 = 540 x 1 + 15

Step 2: Since the reminder 540 ≠ 0, we apply division lemma to 15 and 540, to get

540 = 15 x 36 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 15, the HCF of 555 and 540 is 15

Notice that 15 = HCF(540,15) = HCF(555,540) .


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

Step 1: Since 155 > 15, we apply the division lemma to 155 and 15, to get

155 = 15 x 10 + 5

Step 2: Since the reminder 15 ≠ 0, we apply division lemma to 5 and 15, to get

15 = 5 x 3 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 15 and 155 is 5

Notice that 5 = HCF(15,5) = HCF(155,15) .

HCF using Euclid's Algorithm Calculation Examples

Here are some samples of HCF using Euclid's Algorithm calculations.

Frequently Asked Questions on HCF of 555, 540, 155 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 555, 540, 155?

Answer: HCF of 555, 540, 155 is 5 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 555, 540, 155 using Euclid's Algorithm?

Answer: For arbitrary numbers 555, 540, 155 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.