Highest Common Factor of 663, 830, 818, 78 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 663, 830, 818, 78 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 663, 830, 818, 78 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 663, 830, 818, 78 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 663, 830, 818, 78 is 1.

HCF(663, 830, 818, 78) = 1

HCF of 663, 830, 818, 78 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 663, 830, 818, 78 is 1.

Highest Common Factor of 663,830,818,78 using Euclid's algorithm

Highest Common Factor of 663,830,818,78 is 1

Step 1: Since 830 > 663, we apply the division lemma to 830 and 663, to get

830 = 663 x 1 + 167

Step 2: Since the reminder 663 ≠ 0, we apply division lemma to 167 and 663, to get

663 = 167 x 3 + 162

Step 3: We consider the new divisor 167 and the new remainder 162, and apply the division lemma to get

167 = 162 x 1 + 5

We consider the new divisor 162 and the new remainder 5,and apply the division lemma to get

162 = 5 x 32 + 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 663 and 830 is 1

Notice that 1 = HCF(2,1) = HCF(5,2) = HCF(162,5) = HCF(167,162) = HCF(663,167) = HCF(830,663) .

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

Step 1: Since 818 > 1, we apply the division lemma to 818 and 1, to get

818 = 1 x 818 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 818 is 1

Notice that 1 = HCF(818,1) .

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

Step 1: Since 78 > 1, we apply the division lemma to 78 and 1, to get

78 = 1 x 78 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 78 is 1

Notice that 1 = HCF(78,1) .

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Frequently Asked Questions on HCF of 663, 830, 818, 78 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 663, 830, 818, 78?

Answer: HCF of 663, 830, 818, 78 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 663, 830, 818, 78 using Euclid's Algorithm?

Answer: For arbitrary numbers 663, 830, 818, 78 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.