Highest Common Factor of 603, 225, 555, 74 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, 225, 555, 74 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 603, 225, 555, 74 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, 225, 555, 74 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, 225, 555, 74 is 1.

HCF(603, 225, 555, 74) = 1

HCF of 603, 225, 555, 74 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, 225, 555, 74 is 1.

Highest Common Factor of 603,225,555,74 using Euclid's algorithm

Highest Common Factor of 603,225,555,74 is 1

Step 1: Since 603 > 225, we apply the division lemma to 603 and 225, to get

603 = 225 x 2 + 153

Step 2: Since the reminder 225 ≠ 0, we apply division lemma to 153 and 225, to get

225 = 153 x 1 + 72

Step 3: We consider the new divisor 153 and the new remainder 72, and apply the division lemma to get

153 = 72 x 2 + 9

We consider the new divisor 72 and the new remainder 9, and apply the division lemma to get

72 = 9 x 8 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 9, the HCF of 603 and 225 is 9

Notice that 9 = HCF(72,9) = HCF(153,72) = HCF(225,153) = HCF(603,225) .


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

Step 1: Since 555 > 9, we apply the division lemma to 555 and 9, to get

555 = 9 x 61 + 6

Step 2: Since the reminder 9 ≠ 0, we apply division lemma to 6 and 9, to get

9 = 6 x 1 + 3

Step 3: We consider the new divisor 6 and the new remainder 3, and apply the division lemma to get

6 = 3 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 9 and 555 is 3

Notice that 3 = HCF(6,3) = HCF(9,6) = HCF(555,9) .


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

Step 1: Since 74 > 3, we apply the division lemma to 74 and 3, to get

74 = 3 x 24 + 2

Step 2: Since the reminder 3 ≠ 0, we apply division lemma to 2 and 3, to get

3 = 2 x 1 + 1

Step 3: 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 3 and 74 is 1

Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(74,3) .

HCF using Euclid's Algorithm Calculation Examples

Frequently Asked Questions on HCF of 603, 225, 555, 74 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, 225, 555, 74?

Answer: HCF of 603, 225, 555, 74 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 603, 225, 555, 74 using Euclid's Algorithm?

Answer: For arbitrary numbers 603, 225, 555, 74 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.