Highest Common Factor of 243, 609, 850 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 243, 609, 850 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 243, 609, 850 is 1 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 243, 609, 850 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 243, 609, 850 is 1.

HCF(243, 609, 850) = 1

HCF of 243, 609, 850 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 243, 609, 850 is 1.

Highest Common Factor of 243,609,850 using Euclid's algorithm

Highest Common Factor of 243,609,850 is 1

Step 1: Since 609 > 243, we apply the division lemma to 609 and 243, to get

609 = 243 x 2 + 123

Step 2: Since the reminder 243 ≠ 0, we apply division lemma to 123 and 243, to get

243 = 123 x 1 + 120

Step 3: We consider the new divisor 123 and the new remainder 120, and apply the division lemma to get

123 = 120 x 1 + 3

We consider the new divisor 120 and the new remainder 3, and apply the division lemma to get

120 = 3 x 40 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 243 and 609 is 3

Notice that 3 = HCF(120,3) = HCF(123,120) = HCF(243,123) = HCF(609,243) .


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

Step 1: Since 850 > 3, we apply the division lemma to 850 and 3, to get

850 = 3 x 283 + 1

Step 2: Since the reminder 3 ≠ 0, we apply division lemma to 1 and 3, to get

3 = 1 x 3 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 3 and 850 is 1

Notice that 1 = HCF(3,1) = HCF(850,3) .

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Frequently Asked Questions on HCF of 243, 609, 850 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 243, 609, 850?

Answer: HCF of 243, 609, 850 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 243, 609, 850 using Euclid's Algorithm?

Answer: For arbitrary numbers 243, 609, 850 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.