Highest Common Factor of 975, 450, 270 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 975, 450, 270 i.e. 15 the largest integer that leaves a remainder zero for all numbers.

HCF of 975, 450, 270 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 975, 450, 270 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 975, 450, 270 is 15.

HCF(975, 450, 270) = 15

HCF of 975, 450, 270 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 975, 450, 270 is 15.

Highest Common Factor of 975,450,270 using Euclid's algorithm

Highest Common Factor of 975,450,270 is 15

Step 1: Since 975 > 450, we apply the division lemma to 975 and 450, to get

975 = 450 x 2 + 75

Step 2: Since the reminder 450 ≠ 0, we apply division lemma to 75 and 450, to get

450 = 75 x 6 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 75, the HCF of 975 and 450 is 75

Notice that 75 = HCF(450,75) = HCF(975,450) .


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

Step 1: Since 270 > 75, we apply the division lemma to 270 and 75, to get

270 = 75 x 3 + 45

Step 2: Since the reminder 75 ≠ 0, we apply division lemma to 45 and 75, to get

75 = 45 x 1 + 30

Step 3: We consider the new divisor 45 and the new remainder 30, and apply the division lemma to get

45 = 30 x 1 + 15

We consider the new divisor 30 and the new remainder 15, and apply the division lemma to get

30 = 15 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 15, the HCF of 75 and 270 is 15

Notice that 15 = HCF(30,15) = HCF(45,30) = HCF(75,45) = HCF(270,75) .

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Frequently Asked Questions on HCF of 975, 450, 270 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 975, 450, 270?

Answer: HCF of 975, 450, 270 is 15 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 975, 450, 270 using Euclid's Algorithm?

Answer: For arbitrary numbers 975, 450, 270 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.