Highest Common Factor of 909, 750, 921 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 909, 750, 921 i.e. 3 the largest integer that leaves a remainder zero for all numbers.

HCF of 909, 750, 921 is 3 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 909, 750, 921 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 909, 750, 921 is 3.

HCF(909, 750, 921) = 3

HCF of 909, 750, 921 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 909, 750, 921 is 3.

Highest Common Factor of 909,750,921 using Euclid's algorithm

Highest Common Factor of 909,750,921 is 3

Step 1: Since 909 > 750, we apply the division lemma to 909 and 750, to get

909 = 750 x 1 + 159

Step 2: Since the reminder 750 ≠ 0, we apply division lemma to 159 and 750, to get

750 = 159 x 4 + 114

Step 3: We consider the new divisor 159 and the new remainder 114, and apply the division lemma to get

159 = 114 x 1 + 45

We consider the new divisor 114 and the new remainder 45,and apply the division lemma to get

114 = 45 x 2 + 24

We consider the new divisor 45 and the new remainder 24,and apply the division lemma to get

45 = 24 x 1 + 21

We consider the new divisor 24 and the new remainder 21,and apply the division lemma to get

24 = 21 x 1 + 3

We consider the new divisor 21 and the new remainder 3,and apply the division lemma to get

21 = 3 x 7 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 909 and 750 is 3

Notice that 3 = HCF(21,3) = HCF(24,21) = HCF(45,24) = HCF(114,45) = HCF(159,114) = HCF(750,159) = HCF(909,750) .


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

Step 1: Since 921 > 3, we apply the division lemma to 921 and 3, to get

921 = 3 x 307 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 3 and 921 is 3

Notice that 3 = HCF(921,3) .

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Frequently Asked Questions on HCF of 909, 750, 921 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 909, 750, 921?

Answer: HCF of 909, 750, 921 is 3 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 909, 750, 921 using Euclid's Algorithm?

Answer: For arbitrary numbers 909, 750, 921 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.