Highest Common Factor of 990, 717, 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 990, 717, 240 i.e. 3 the largest integer that leaves a remainder zero for all numbers.

HCF of 990, 717, 240 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 990, 717, 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 990, 717, 240 is 3.

HCF(990, 717, 240) = 3

HCF of 990, 717, 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 990, 717, 240 is 3.

Highest Common Factor of 990,717,240 using Euclid's algorithm

Highest Common Factor of 990,717,240 is 3

Step 1: Since 990 > 717, we apply the division lemma to 990 and 717, to get

990 = 717 x 1 + 273

Step 2: Since the reminder 717 ≠ 0, we apply division lemma to 273 and 717, to get

717 = 273 x 2 + 171

Step 3: We consider the new divisor 273 and the new remainder 171, and apply the division lemma to get

273 = 171 x 1 + 102

We consider the new divisor 171 and the new remainder 102,and apply the division lemma to get

171 = 102 x 1 + 69

We consider the new divisor 102 and the new remainder 69,and apply the division lemma to get

102 = 69 x 1 + 33

We consider the new divisor 69 and the new remainder 33,and apply the division lemma to get

69 = 33 x 2 + 3

We consider the new divisor 33 and the new remainder 3,and apply the division lemma to get

33 = 3 x 11 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 990 and 717 is 3

Notice that 3 = HCF(33,3) = HCF(69,33) = HCF(102,69) = HCF(171,102) = HCF(273,171) = HCF(717,273) = HCF(990,717) .


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

Step 1: Since 240 > 3, we apply the division lemma to 240 and 3, to get

240 = 3 x 80 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 3 and 240 is 3

Notice that 3 = HCF(240,3) .

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Frequently Asked Questions on HCF of 990, 717, 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 990, 717, 240?

Answer: HCF of 990, 717, 240 is 3 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 990, 717, 240 using Euclid's Algorithm?

Answer: For arbitrary numbers 990, 717, 240 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.