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 644, 291, 213 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 644, 291, 213 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 644, 291, 213 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 644, 291, 213 is 1.
HCF(644, 291, 213) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 644, 291, 213 is 1.
Step 1: Since 644 > 291, we apply the division lemma to 644 and 291, to get
644 = 291 x 2 + 62
Step 2: Since the reminder 291 ≠ 0, we apply division lemma to 62 and 291, to get
291 = 62 x 4 + 43
Step 3: We consider the new divisor 62 and the new remainder 43, and apply the division lemma to get
62 = 43 x 1 + 19
We consider the new divisor 43 and the new remainder 19,and apply the division lemma to get
43 = 19 x 2 + 5
We consider the new divisor 19 and the new remainder 5,and apply the division lemma to get
19 = 5 x 3 + 4
We consider the new divisor 5 and the new remainder 4,and apply the division lemma to get
5 = 4 x 1 + 1
We consider the new divisor 4 and the new remainder 1,and apply the division lemma to get
4 = 1 x 4 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 644 and 291 is 1
Notice that 1 = HCF(4,1) = HCF(5,4) = HCF(19,5) = HCF(43,19) = HCF(62,43) = HCF(291,62) = HCF(644,291) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 213 > 1, we apply the division lemma to 213 and 1, to get
213 = 1 x 213 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 213 is 1
Notice that 1 = HCF(213,1) .
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 644, 291, 213?
Answer: HCF of 644, 291, 213 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 644, 291, 213 using Euclid's Algorithm?
Answer: For arbitrary numbers 644, 291, 213 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.