Highest Common Factor of 256, 257 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 256, 257 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 256, 257 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 256, 257 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 256, 257 is 1.

HCF(256, 257) = 1

HCF of 256, 257 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 256, 257 is 1.

Highest Common Factor of 256,257 using Euclid's algorithm

Highest Common Factor of 256,257 is 1

Step 1: Since 257 > 256, we apply the division lemma to 257 and 256, to get

257 = 256 x 1 + 1

Step 2: Since the reminder 256 ≠ 0, we apply division lemma to 1 and 256, to get

256 = 1 x 256 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 256 and 257 is 1

Notice that 1 = HCF(256,1) = HCF(257,256) .

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Frequently Asked Questions on HCF of 256, 257 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 256, 257?

Answer: HCF of 256, 257 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 256, 257 using Euclid's Algorithm?

Answer: For arbitrary numbers 256, 257 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.