Highest Common Factor of 825, 405, 965 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 825, 405, 965 i.e. 5 the largest integer that leaves a remainder zero for all numbers.

HCF of 825, 405, 965 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 825, 405, 965 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 825, 405, 965 is 5.

HCF(825, 405, 965) = 5

HCF of 825, 405, 965 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 825, 405, 965 is 5.

Highest Common Factor of 825,405,965 using Euclid's algorithm

Highest Common Factor of 825,405,965 is 5

Step 1: Since 825 > 405, we apply the division lemma to 825 and 405, to get

825 = 405 x 2 + 15

Step 2: Since the reminder 405 ≠ 0, we apply division lemma to 15 and 405, to get

405 = 15 x 27 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 15, the HCF of 825 and 405 is 15

Notice that 15 = HCF(405,15) = HCF(825,405) .


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

Step 1: Since 965 > 15, we apply the division lemma to 965 and 15, to get

965 = 15 x 64 + 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 965 is 5

Notice that 5 = HCF(15,5) = HCF(965,15) .

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Frequently Asked Questions on HCF of 825, 405, 965 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 825, 405, 965?

Answer: HCF of 825, 405, 965 is 5 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 825, 405, 965 using Euclid's Algorithm?

Answer: For arbitrary numbers 825, 405, 965 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.