Highest Common Factor of 318, 689, 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 318, 689, 503 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 318, 689, 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 318, 689, 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 318, 689, 503 is 1.

HCF(318, 689, 503) = 1

HCF of 318, 689, 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 318, 689, 503 is 1.

Highest Common Factor of 318,689,503 using Euclid's algorithm

Highest Common Factor of 318,689,503 is 1

Step 1: Since 689 > 318, we apply the division lemma to 689 and 318, to get

689 = 318 x 2 + 53

Step 2: Since the reminder 318 ≠ 0, we apply division lemma to 53 and 318, to get

318 = 53 x 6 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 53, the HCF of 318 and 689 is 53

Notice that 53 = HCF(318,53) = HCF(689,318) .


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

Step 1: Since 503 > 53, we apply the division lemma to 503 and 53, to get

503 = 53 x 9 + 26

Step 2: Since the reminder 53 ≠ 0, we apply division lemma to 26 and 53, to get

53 = 26 x 2 + 1

Step 3: We consider the new divisor 26 and the new remainder 1, and apply the division lemma to get

26 = 1 x 26 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 53 and 503 is 1

Notice that 1 = HCF(26,1) = HCF(53,26) = HCF(503,53) .

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Frequently Asked Questions on HCF of 318, 689, 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 318, 689, 503?

Answer: HCF of 318, 689, 503 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 318, 689, 503 using Euclid's Algorithm?

Answer: For arbitrary numbers 318, 689, 503 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.