Highest Common Factor of 400, 511 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 400, 511 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 400, 511 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 400, 511 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 400, 511 is 1.

HCF(400, 511) = 1

HCF of 400, 511 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 400, 511 is 1.

Highest Common Factor of 400,511 using Euclid's algorithm

Highest Common Factor of 400,511 is 1

Step 1: Since 511 > 400, we apply the division lemma to 511 and 400, to get

511 = 400 x 1 + 111

Step 2: Since the reminder 400 ≠ 0, we apply division lemma to 111 and 400, to get

400 = 111 x 3 + 67

Step 3: We consider the new divisor 111 and the new remainder 67, and apply the division lemma to get

111 = 67 x 1 + 44

We consider the new divisor 67 and the new remainder 44,and apply the division lemma to get

67 = 44 x 1 + 23

We consider the new divisor 44 and the new remainder 23,and apply the division lemma to get

44 = 23 x 1 + 21

We consider the new divisor 23 and the new remainder 21,and apply the division lemma to get

23 = 21 x 1 + 2

We consider the new divisor 21 and the new remainder 2,and apply the division lemma to get

21 = 2 x 10 + 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 400 and 511 is 1

Notice that 1 = HCF(2,1) = HCF(21,2) = HCF(23,21) = HCF(44,23) = HCF(67,44) = HCF(111,67) = HCF(400,111) = HCF(511,400) .

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Frequently Asked Questions on HCF of 400, 511 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 400, 511?

Answer: HCF of 400, 511 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 400, 511 using Euclid's Algorithm?

Answer: For arbitrary numbers 400, 511 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.