Highest Common Factor of 805, 851, 990, 22 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 805, 851, 990, 22 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 805, 851, 990, 22 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 805, 851, 990, 22 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 805, 851, 990, 22 is 1.

HCF(805, 851, 990, 22) = 1

HCF of 805, 851, 990, 22 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 805, 851, 990, 22 is 1.

Highest Common Factor of 805,851,990,22 using Euclid's algorithm

Highest Common Factor of 805,851,990,22 is 1

Step 1: Since 851 > 805, we apply the division lemma to 851 and 805, to get

851 = 805 x 1 + 46

Step 2: Since the reminder 805 ≠ 0, we apply division lemma to 46 and 805, to get

805 = 46 x 17 + 23

Step 3: We consider the new divisor 46 and the new remainder 23, and apply the division lemma to get

46 = 23 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 23, the HCF of 805 and 851 is 23

Notice that 23 = HCF(46,23) = HCF(805,46) = HCF(851,805) .


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

Step 1: Since 990 > 23, we apply the division lemma to 990 and 23, to get

990 = 23 x 43 + 1

Step 2: Since the reminder 23 ≠ 0, we apply division lemma to 1 and 23, to get

23 = 1 x 23 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 23 and 990 is 1

Notice that 1 = HCF(23,1) = HCF(990,23) .


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

Step 1: Since 22 > 1, we apply the division lemma to 22 and 1, to get

22 = 1 x 22 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 22 is 1

Notice that 1 = HCF(22,1) .

HCF using Euclid's Algorithm Calculation Examples

Frequently Asked Questions on HCF of 805, 851, 990, 22 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 805, 851, 990, 22?

Answer: HCF of 805, 851, 990, 22 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 805, 851, 990, 22 using Euclid's Algorithm?

Answer: For arbitrary numbers 805, 851, 990, 22 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.