Highest Common Factor of 510, 621 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 510, 621 i.e. 3 the largest integer that leaves a remainder zero for all numbers.

HCF of 510, 621 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 510, 621 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 510, 621 is 3.

HCF(510, 621) = 3

HCF of 510, 621 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 510, 621 is 3.

Highest Common Factor of 510,621 using Euclid's algorithm

Highest Common Factor of 510,621 is 3

Step 1: Since 621 > 510, we apply the division lemma to 621 and 510, to get

621 = 510 x 1 + 111

Step 2: Since the reminder 510 ≠ 0, we apply division lemma to 111 and 510, to get

510 = 111 x 4 + 66

Step 3: We consider the new divisor 111 and the new remainder 66, and apply the division lemma to get

111 = 66 x 1 + 45

We consider the new divisor 66 and the new remainder 45,and apply the division lemma to get

66 = 45 x 1 + 21

We consider the new divisor 45 and the new remainder 21,and apply the division lemma to get

45 = 21 x 2 + 3

We consider the new divisor 21 and the new remainder 3,and apply the division lemma to get

21 = 3 x 7 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 510 and 621 is 3

Notice that 3 = HCF(21,3) = HCF(45,21) = HCF(66,45) = HCF(111,66) = HCF(510,111) = HCF(621,510) .

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Frequently Asked Questions on HCF of 510, 621 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 510, 621?

Answer: HCF of 510, 621 is 3 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 510, 621 using Euclid's Algorithm?

Answer: For arbitrary numbers 510, 621 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.