Highest Common Factor of 170, 622 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 170, 622 i.e. 2 the largest integer that leaves a remainder zero for all numbers.

HCF of 170, 622 is 2 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 170, 622 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 170, 622 is 2.

HCF(170, 622) = 2

HCF of 170, 622 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 170, 622 is 2.

Highest Common Factor of 170,622 using Euclid's algorithm

Highest Common Factor of 170,622 is 2

Step 1: Since 622 > 170, we apply the division lemma to 622 and 170, to get

622 = 170 x 3 + 112

Step 2: Since the reminder 170 ≠ 0, we apply division lemma to 112 and 170, to get

170 = 112 x 1 + 58

Step 3: We consider the new divisor 112 and the new remainder 58, and apply the division lemma to get

112 = 58 x 1 + 54

We consider the new divisor 58 and the new remainder 54,and apply the division lemma to get

58 = 54 x 1 + 4

We consider the new divisor 54 and the new remainder 4,and apply the division lemma to get

54 = 4 x 13 + 2

We consider the new divisor 4 and the new remainder 2,and apply the division lemma to get

4 = 2 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 170 and 622 is 2

Notice that 2 = HCF(4,2) = HCF(54,4) = HCF(58,54) = HCF(112,58) = HCF(170,112) = HCF(622,170) .

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Frequently Asked Questions on HCF of 170, 622 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 170, 622?

Answer: HCF of 170, 622 is 2 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 170, 622 using Euclid's Algorithm?

Answer: For arbitrary numbers 170, 622 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.