Highest Common Factor of 257, 921, 907 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 257, 921, 907 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 257, 921, 907 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 257, 921, 907 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 257, 921, 907 is 1.

HCF(257, 921, 907) = 1

HCF of 257, 921, 907 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 257, 921, 907 is 1.

Highest Common Factor of 257,921,907 using Euclid's algorithm

Highest Common Factor of 257,921,907 is 1

Step 1: Since 921 > 257, we apply the division lemma to 921 and 257, to get

921 = 257 x 3 + 150

Step 2: Since the reminder 257 ≠ 0, we apply division lemma to 150 and 257, to get

257 = 150 x 1 + 107

Step 3: We consider the new divisor 150 and the new remainder 107, and apply the division lemma to get

150 = 107 x 1 + 43

We consider the new divisor 107 and the new remainder 43,and apply the division lemma to get

107 = 43 x 2 + 21

We consider the new divisor 43 and the new remainder 21,and apply the division lemma to get

43 = 21 x 2 + 1

We consider the new divisor 21 and the new remainder 1,and apply the division lemma to get

21 = 1 x 21 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 257 and 921 is 1

Notice that 1 = HCF(21,1) = HCF(43,21) = HCF(107,43) = HCF(150,107) = HCF(257,150) = HCF(921,257) .

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

Step 1: Since 907 > 1, we apply the division lemma to 907 and 1, to get

907 = 1 x 907 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 907 is 1

Notice that 1 = HCF(907,1) .

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Frequently Asked Questions on HCF of 257, 921, 907 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 257, 921, 907?

Answer: HCF of 257, 921, 907 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 257, 921, 907 using Euclid's Algorithm?

Answer: For arbitrary numbers 257, 921, 907 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.