Highest Common Factor of 842, 235, 455 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 842, 235, 455 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 842, 235, 455 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 842, 235, 455 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 842, 235, 455 is 1.

HCF(842, 235, 455) = 1

HCF of 842, 235, 455 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 842, 235, 455 is 1.

Highest Common Factor of 842,235,455 using Euclid's algorithm

Highest Common Factor of 842,235,455 is 1

Step 1: Since 842 > 235, we apply the division lemma to 842 and 235, to get

842 = 235 x 3 + 137

Step 2: Since the reminder 235 ≠ 0, we apply division lemma to 137 and 235, to get

235 = 137 x 1 + 98

Step 3: We consider the new divisor 137 and the new remainder 98, and apply the division lemma to get

137 = 98 x 1 + 39

We consider the new divisor 98 and the new remainder 39,and apply the division lemma to get

98 = 39 x 2 + 20

We consider the new divisor 39 and the new remainder 20,and apply the division lemma to get

39 = 20 x 1 + 19

We consider the new divisor 20 and the new remainder 19,and apply the division lemma to get

20 = 19 x 1 + 1

We consider the new divisor 19 and the new remainder 1,and apply the division lemma to get

19 = 1 x 19 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 842 and 235 is 1

Notice that 1 = HCF(19,1) = HCF(20,19) = HCF(39,20) = HCF(98,39) = HCF(137,98) = HCF(235,137) = HCF(842,235) .

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

Step 1: Since 455 > 1, we apply the division lemma to 455 and 1, to get

455 = 1 x 455 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 455 is 1

Notice that 1 = HCF(455,1) .

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Frequently Asked Questions on HCF of 842, 235, 455 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 842, 235, 455?

Answer: HCF of 842, 235, 455 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 842, 235, 455 using Euclid's Algorithm?

Answer: For arbitrary numbers 842, 235, 455 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.