HCF Calculator using the Euclid Division Algorithm helps you to find the Highest common factor (HCF) easily for 15, 45, 90 i.e. 15 the largest integer that leaves a remainder zero for all numbers.

HCF of 15, 45, 90 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 15, 45, 90 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 15, 45, 90 is **15**.

HCF(15, 45, 90) = 15

*Highest common factor* or Highest common divisor (hcd) can be calculated by Euclid's algotithm.

Highest common factor (HCF) of 15, 45, 90 is **15**.

**Step 1:** Since 45 > 15, we apply the division lemma to 45 and 15, to get

45 = 15 x 3 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 15, the HCF of 15 and 45 is 15

Notice that 15 = HCF(45,15) .

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

**Step 1:** Since 90 > 15, we apply the division lemma to 90 and 15, to get

90 = 15 x 6 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 15, the HCF of 15 and 90 is 15

Notice that 15 = HCF(90,15) .

Here are some samples of HCF using Euclid's Algorithm calculations.

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 15, 45, 90?

Answer: HCF of 15, 45, 90 is 15 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 15, 45, 90 using Euclid's Algorithm?

Answer: For arbitrary numbers 15, 45, 90 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.