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 936, 3805, 7021 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 936, 3805, 7021 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 936, 3805, 7021 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 936, 3805, 7021 is 1.
HCF(936, 3805, 7021) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 936, 3805, 7021 is 1.
Step 1: Since 3805 > 936, we apply the division lemma to 3805 and 936, to get
3805 = 936 x 4 + 61
Step 2: Since the reminder 936 ≠ 0, we apply division lemma to 61 and 936, to get
936 = 61 x 15 + 21
Step 3: We consider the new divisor 61 and the new remainder 21, and apply the division lemma to get
61 = 21 x 2 + 19
We consider the new divisor 21 and the new remainder 19,and apply the division lemma to get
21 = 19 x 1 + 2
We consider the new divisor 19 and the new remainder 2,and apply the division lemma to get
19 = 2 x 9 + 1
We consider the new divisor 2 and the new remainder 1,and apply the division lemma to get
2 = 1 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 936 and 3805 is 1
Notice that 1 = HCF(2,1) = HCF(19,2) = HCF(21,19) = HCF(61,21) = HCF(936,61) = HCF(3805,936) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 7021 > 1, we apply the division lemma to 7021 and 1, to get
7021 = 1 x 7021 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 7021 is 1
Notice that 1 = HCF(7021,1) .
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 936, 3805, 7021?
Answer: HCF of 936, 3805, 7021 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 936, 3805, 7021 using Euclid's Algorithm?
Answer: For arbitrary numbers 936, 3805, 7021 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.