Highest Common Factor of 303, 380, 18 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 303, 380, 18 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 303, 380, 18 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 303, 380, 18 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 303, 380, 18 is 1.

HCF(303, 380, 18) = 1

HCF of 303, 380, 18 using Euclid's algorithm

Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.

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Highest common factor (HCF) of 303, 380, 18 is 1.

Highest Common Factor of 303,380,18 using Euclid's algorithm

Highest Common Factor of 303,380,18 is 1

Step 1: Since 380 > 303, we apply the division lemma to 380 and 303, to get

380 = 303 x 1 + 77

Step 2: Since the reminder 303 ≠ 0, we apply division lemma to 77 and 303, to get

303 = 77 x 3 + 72

Step 3: We consider the new divisor 77 and the new remainder 72, and apply the division lemma to get

77 = 72 x 1 + 5

We consider the new divisor 72 and the new remainder 5,and apply the division lemma to get

72 = 5 x 14 + 2

We consider the new divisor 5 and the new remainder 2,and apply the division lemma to get

5 = 2 x 2 + 1

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 303 and 380 is 1

Notice that 1 = HCF(2,1) = HCF(5,2) = HCF(72,5) = HCF(77,72) = HCF(303,77) = HCF(380,303) .

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

Step 1: Since 18 > 1, we apply the division lemma to 18 and 1, to get

18 = 1 x 18 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 18 is 1

Notice that 1 = HCF(18,1) .

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Frequently Asked Questions on HCF of 303, 380, 18 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 303, 380, 18?

Answer: HCF of 303, 380, 18 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 303, 380, 18 using Euclid's Algorithm?

Answer: For arbitrary numbers 303, 380, 18 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.