Highest Common Factor of 900, 555 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 900, 555 i.e. 15 the largest integer that leaves a remainder zero for all numbers.

HCF of 900, 555 is 15 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 900, 555 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 900, 555 is 15.

HCF(900, 555) = 15

HCF of 900, 555 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 900, 555 is 15.

Highest Common Factor of 900,555 using Euclid's algorithm

Highest Common Factor of 900,555 is 15

Step 1: Since 900 > 555, we apply the division lemma to 900 and 555, to get

900 = 555 x 1 + 345

Step 2: Since the reminder 555 ≠ 0, we apply division lemma to 345 and 555, to get

555 = 345 x 1 + 210

Step 3: We consider the new divisor 345 and the new remainder 210, and apply the division lemma to get

345 = 210 x 1 + 135

We consider the new divisor 210 and the new remainder 135,and apply the division lemma to get

210 = 135 x 1 + 75

We consider the new divisor 135 and the new remainder 75,and apply the division lemma to get

135 = 75 x 1 + 60

We consider the new divisor 75 and the new remainder 60,and apply the division lemma to get

75 = 60 x 1 + 15

We consider the new divisor 60 and the new remainder 15,and apply the division lemma to get

60 = 15 x 4 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 15, the HCF of 900 and 555 is 15

Notice that 15 = HCF(60,15) = HCF(75,60) = HCF(135,75) = HCF(210,135) = HCF(345,210) = HCF(555,345) = HCF(900,555) .

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Frequently Asked Questions on HCF of 900, 555 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 900, 555?

Answer: HCF of 900, 555 is 15 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 900, 555 using Euclid's Algorithm?

Answer: For arbitrary numbers 900, 555 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.