Highest Common Factor of 520, 240, 55 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 520, 240, 55 i.e. 5 the largest integer that leaves a remainder zero for all numbers.

HCF of 520, 240, 55 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 520, 240, 55 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 520, 240, 55 is 5.

HCF(520, 240, 55) = 5

HCF of 520, 240, 55 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 520, 240, 55 is 5.

Highest Common Factor of 520,240,55 using Euclid's algorithm

Highest Common Factor of 520,240,55 is 5

Step 1: Since 520 > 240, we apply the division lemma to 520 and 240, to get

520 = 240 x 2 + 40

Step 2: Since the reminder 240 ≠ 0, we apply division lemma to 40 and 240, to get

240 = 40 x 6 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 40, the HCF of 520 and 240 is 40

Notice that 40 = HCF(240,40) = HCF(520,240) .


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

Step 1: Since 55 > 40, we apply the division lemma to 55 and 40, to get

55 = 40 x 1 + 15

Step 2: Since the reminder 40 ≠ 0, we apply division lemma to 15 and 40, to get

40 = 15 x 2 + 10

Step 3: We consider the new divisor 15 and the new remainder 10, and apply the division lemma to get

15 = 10 x 1 + 5

We consider the new divisor 10 and the new remainder 5, and apply the division lemma to get

10 = 5 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 40 and 55 is 5

Notice that 5 = HCF(10,5) = HCF(15,10) = HCF(40,15) = HCF(55,40) .

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Frequently Asked Questions on HCF of 520, 240, 55 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 520, 240, 55?

Answer: HCF of 520, 240, 55 is 5 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 520, 240, 55 using Euclid's Algorithm?

Answer: For arbitrary numbers 520, 240, 55 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.