Highest Common Factor of 858, 7409 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 858, 7409 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 858, 7409 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 858, 7409 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 858, 7409 is 1.

HCF(858, 7409) = 1

HCF of 858, 7409 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 858, 7409 is 1.

Highest Common Factor of 858,7409 using Euclid's algorithm

Highest Common Factor of 858,7409 is 1

Step 1: Since 7409 > 858, we apply the division lemma to 7409 and 858, to get

7409 = 858 x 8 + 545

Step 2: Since the reminder 858 ≠ 0, we apply division lemma to 545 and 858, to get

858 = 545 x 1 + 313

Step 3: We consider the new divisor 545 and the new remainder 313, and apply the division lemma to get

545 = 313 x 1 + 232

We consider the new divisor 313 and the new remainder 232,and apply the division lemma to get

313 = 232 x 1 + 81

We consider the new divisor 232 and the new remainder 81,and apply the division lemma to get

232 = 81 x 2 + 70

We consider the new divisor 81 and the new remainder 70,and apply the division lemma to get

81 = 70 x 1 + 11

We consider the new divisor 70 and the new remainder 11,and apply the division lemma to get

70 = 11 x 6 + 4

We consider the new divisor 11 and the new remainder 4,and apply the division lemma to get

11 = 4 x 2 + 3

We consider the new divisor 4 and the new remainder 3,and apply the division lemma to get

4 = 3 x 1 + 1

We consider the new divisor 3 and the new remainder 1,and apply the division lemma to get

3 = 1 x 3 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 858 and 7409 is 1

Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(11,4) = HCF(70,11) = HCF(81,70) = HCF(232,81) = HCF(313,232) = HCF(545,313) = HCF(858,545) = HCF(7409,858) .

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Frequently Asked Questions on HCF of 858, 7409 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 858, 7409?

Answer: HCF of 858, 7409 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 858, 7409 using Euclid's Algorithm?

Answer: For arbitrary numbers 858, 7409 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.