HCF Calculator using the Euclid Division Algorithm helps you to find the Highest common factor (HCF) easily for 42, 126, 210 i.e. 42 the largest integer that leaves a remainder zero for all numbers.

HCF of 42, 126, 210 is 42 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 42, 126, 210 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 42, 126, 210 is **42**.

HCF(42, 126, 210) = 42

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

Highest common factor (HCF) of 42, 126, 210 is **42**.

**Step 1:** Since 126 > 42, we apply the division lemma to 126 and 42, to get

126 = 42 x 3 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 42, the HCF of 42 and 126 is 42

Notice that 42 = HCF(126,42) .

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

**Step 1:** Since 210 > 42, we apply the division lemma to 210 and 42, to get

210 = 42 x 5 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 42, the HCF of 42 and 210 is 42

Notice that 42 = HCF(210,42) .

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 42, 126, 210?

Answer: HCF of 42, 126, 210 is 42 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 42, 126, 210 using Euclid's Algorithm?

Answer: For arbitrary numbers 42, 126, 210 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.