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 100, 871, 21, 859 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 100, 871, 21, 859 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 100, 871, 21, 859 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 100, 871, 21, 859 is 1.
HCF(100, 871, 21, 859) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 100, 871, 21, 859 is 1.
Step 1: Since 871 > 100, we apply the division lemma to 871 and 100, to get
871 = 100 x 8 + 71
Step 2: Since the reminder 100 ≠ 0, we apply division lemma to 71 and 100, to get
100 = 71 x 1 + 29
Step 3: We consider the new divisor 71 and the new remainder 29, and apply the division lemma to get
71 = 29 x 2 + 13
We consider the new divisor 29 and the new remainder 13,and apply the division lemma to get
29 = 13 x 2 + 3
We consider the new divisor 13 and the new remainder 3,and apply the division lemma to get
13 = 3 x 4 + 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 100 and 871 is 1
Notice that 1 = HCF(3,1) = HCF(13,3) = HCF(29,13) = HCF(71,29) = HCF(100,71) = HCF(871,100) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 21 > 1, we apply the division lemma to 21 and 1, to get
21 = 1 x 21 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 21 is 1
Notice that 1 = HCF(21,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 859 > 1, we apply the division lemma to 859 and 1, to get
859 = 1 x 859 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 859 is 1
Notice that 1 = HCF(859,1) .
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 100, 871, 21, 859?
Answer: HCF of 100, 871, 21, 859 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 100, 871, 21, 859 using Euclid's Algorithm?
Answer: For arbitrary numbers 100, 871, 21, 859 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.