Highest Common Factor of 426, 678, 999 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 426, 678, 999 i.e. 3 the largest integer that leaves a remainder zero for all numbers.

HCF of 426, 678, 999 is 3 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 426, 678, 999 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 426, 678, 999 is 3.

HCF(426, 678, 999) = 3

HCF of 426, 678, 999 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 426, 678, 999 is 3.

Highest Common Factor of 426,678,999 using Euclid's algorithm

Highest Common Factor of 426,678,999 is 3

Step 1: Since 678 > 426, we apply the division lemma to 678 and 426, to get

678 = 426 x 1 + 252

Step 2: Since the reminder 426 ≠ 0, we apply division lemma to 252 and 426, to get

426 = 252 x 1 + 174

Step 3: We consider the new divisor 252 and the new remainder 174, and apply the division lemma to get

252 = 174 x 1 + 78

We consider the new divisor 174 and the new remainder 78,and apply the division lemma to get

174 = 78 x 2 + 18

We consider the new divisor 78 and the new remainder 18,and apply the division lemma to get

78 = 18 x 4 + 6

We consider the new divisor 18 and the new remainder 6,and apply the division lemma to get

18 = 6 x 3 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 6, the HCF of 426 and 678 is 6

Notice that 6 = HCF(18,6) = HCF(78,18) = HCF(174,78) = HCF(252,174) = HCF(426,252) = HCF(678,426) .


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

Step 1: Since 999 > 6, we apply the division lemma to 999 and 6, to get

999 = 6 x 166 + 3

Step 2: Since the reminder 6 ≠ 0, we apply division lemma to 3 and 6, 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 6 and 999 is 3

Notice that 3 = HCF(6,3) = HCF(999,6) .

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Frequently Asked Questions on HCF of 426, 678, 999 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 426, 678, 999?

Answer: HCF of 426, 678, 999 is 3 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 426, 678, 999 using Euclid's Algorithm?

Answer: For arbitrary numbers 426, 678, 999 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.