Highest Common Factor of 780, 303, 503 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 780, 303, 503 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 780, 303, 503 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 780, 303, 503 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 780, 303, 503 is 1.

HCF(780, 303, 503) = 1

HCF of 780, 303, 503 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 780, 303, 503 is 1.

Highest Common Factor of 780,303,503 using Euclid's algorithm

Highest Common Factor of 780,303,503 is 1

Step 1: Since 780 > 303, we apply the division lemma to 780 and 303, to get

780 = 303 x 2 + 174

Step 2: Since the reminder 303 ≠ 0, we apply division lemma to 174 and 303, to get

303 = 174 x 1 + 129

Step 3: We consider the new divisor 174 and the new remainder 129, and apply the division lemma to get

174 = 129 x 1 + 45

We consider the new divisor 129 and the new remainder 45,and apply the division lemma to get

129 = 45 x 2 + 39

We consider the new divisor 45 and the new remainder 39,and apply the division lemma to get

45 = 39 x 1 + 6

We consider the new divisor 39 and the new remainder 6,and apply the division lemma to get

39 = 6 x 6 + 3

We consider the new divisor 6 and the new remainder 3,and apply the division lemma to get

6 = 3 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 780 and 303 is 3

Notice that 3 = HCF(6,3) = HCF(39,6) = HCF(45,39) = HCF(129,45) = HCF(174,129) = HCF(303,174) = HCF(780,303) .

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

Step 1: Since 503 > 3, we apply the division lemma to 503 and 3, to get

503 = 3 x 167 + 2

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

3 = 2 x 1 + 1

Step 3: We consider the new divisor 2 and the new remainder 1, and apply the division lemma to get

2 = 1 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 3 and 503 is 1

Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(503,3) .

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Frequently Asked Questions on HCF of 780, 303, 503 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 780, 303, 503?

Answer: HCF of 780, 303, 503 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 780, 303, 503 using Euclid's Algorithm?

Answer: For arbitrary numbers 780, 303, 503 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.