Highest Common Factor of 603, 655 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 603, 655 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 603, 655 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 603, 655 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 603, 655 is 1.

HCF(603, 655) = 1

HCF of 603, 655 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 603, 655 is 1.

Highest Common Factor of 603,655 using Euclid's algorithm

Highest Common Factor of 603,655 is 1

Step 1: Since 655 > 603, we apply the division lemma to 655 and 603, to get

655 = 603 x 1 + 52

Step 2: Since the reminder 603 ≠ 0, we apply division lemma to 52 and 603, to get

603 = 52 x 11 + 31

Step 3: We consider the new divisor 52 and the new remainder 31, and apply the division lemma to get

52 = 31 x 1 + 21

We consider the new divisor 31 and the new remainder 21,and apply the division lemma to get

31 = 21 x 1 + 10

We consider the new divisor 21 and the new remainder 10,and apply the division lemma to get

21 = 10 x 2 + 1

We consider the new divisor 10 and the new remainder 1,and apply the division lemma to get

10 = 1 x 10 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 603 and 655 is 1

Notice that 1 = HCF(10,1) = HCF(21,10) = HCF(31,21) = HCF(52,31) = HCF(603,52) = HCF(655,603) .

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Frequently Asked Questions on HCF of 603, 655 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 603, 655?

Answer: HCF of 603, 655 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 603, 655 using Euclid's Algorithm?

Answer: For arbitrary numbers 603, 655 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.