Highest Common Factor of 636, 240, 802 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 636, 240, 802 i.e. 2 the largest integer that leaves a remainder zero for all numbers.

HCF of 636, 240, 802 is 2 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 636, 240, 802 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 636, 240, 802 is 2.

HCF(636, 240, 802) = 2

HCF of 636, 240, 802 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 636, 240, 802 is 2.

Highest Common Factor of 636,240,802 using Euclid's algorithm

Highest Common Factor of 636,240,802 is 2

Step 1: Since 636 > 240, we apply the division lemma to 636 and 240, to get

636 = 240 x 2 + 156

Step 2: Since the reminder 240 ≠ 0, we apply division lemma to 156 and 240, to get

240 = 156 x 1 + 84

Step 3: We consider the new divisor 156 and the new remainder 84, and apply the division lemma to get

156 = 84 x 1 + 72

We consider the new divisor 84 and the new remainder 72,and apply the division lemma to get

84 = 72 x 1 + 12

We consider the new divisor 72 and the new remainder 12,and apply the division lemma to get

72 = 12 x 6 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 12, the HCF of 636 and 240 is 12

Notice that 12 = HCF(72,12) = HCF(84,72) = HCF(156,84) = HCF(240,156) = HCF(636,240) .


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

Step 1: Since 802 > 12, we apply the division lemma to 802 and 12, to get

802 = 12 x 66 + 10

Step 2: Since the reminder 12 ≠ 0, we apply division lemma to 10 and 12, to get

12 = 10 x 1 + 2

Step 3: We consider the new divisor 10 and the new remainder 2, and apply the division lemma to get

10 = 2 x 5 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 12 and 802 is 2

Notice that 2 = HCF(10,2) = HCF(12,10) = HCF(802,12) .

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Frequently Asked Questions on HCF of 636, 240, 802 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 636, 240, 802?

Answer: HCF of 636, 240, 802 is 2 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 636, 240, 802 using Euclid's Algorithm?

Answer: For arbitrary numbers 636, 240, 802 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.