Highest Common Factor of 165, 240 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 165, 240 i.e. 15 the largest integer that leaves a remainder zero for all numbers.

HCF of 165, 240 is 15 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 165, 240 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 165, 240 is 15.

HCF(165, 240) = 15

HCF of 165, 240 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 165, 240 is 15.

Highest Common Factor of 165,240 using Euclid's algorithm

Highest Common Factor of 165,240 is 15

Step 1: Since 240 > 165, we apply the division lemma to 240 and 165, to get

240 = 165 x 1 + 75

Step 2: Since the reminder 165 ≠ 0, we apply division lemma to 75 and 165, to get

165 = 75 x 2 + 15

Step 3: We consider the new divisor 75 and the new remainder 15, and apply the division lemma to get

75 = 15 x 5 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 15, the HCF of 165 and 240 is 15

Notice that 15 = HCF(75,15) = HCF(165,75) = HCF(240,165) .

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Frequently Asked Questions on HCF of 165, 240 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 165, 240?

Answer: HCF of 165, 240 is 15 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 165, 240 using Euclid's Algorithm?

Answer: For arbitrary numbers 165, 240 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.