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 724, 447, 771 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 724, 447, 771 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 724, 447, 771 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 724, 447, 771 is 1.
HCF(724, 447, 771) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 724, 447, 771 is 1.
Step 1: Since 724 > 447, we apply the division lemma to 724 and 447, to get
724 = 447 x 1 + 277
Step 2: Since the reminder 447 ≠ 0, we apply division lemma to 277 and 447, to get
447 = 277 x 1 + 170
Step 3: We consider the new divisor 277 and the new remainder 170, and apply the division lemma to get
277 = 170 x 1 + 107
We consider the new divisor 170 and the new remainder 107,and apply the division lemma to get
170 = 107 x 1 + 63
We consider the new divisor 107 and the new remainder 63,and apply the division lemma to get
107 = 63 x 1 + 44
We consider the new divisor 63 and the new remainder 44,and apply the division lemma to get
63 = 44 x 1 + 19
We consider the new divisor 44 and the new remainder 19,and apply the division lemma to get
44 = 19 x 2 + 6
We consider the new divisor 19 and the new remainder 6,and apply the division lemma to get
19 = 6 x 3 + 1
We consider the new divisor 6 and the new remainder 1,and apply the division lemma to get
6 = 1 x 6 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 724 and 447 is 1
Notice that 1 = HCF(6,1) = HCF(19,6) = HCF(44,19) = HCF(63,44) = HCF(107,63) = HCF(170,107) = HCF(277,170) = HCF(447,277) = HCF(724,447) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 771 > 1, we apply the division lemma to 771 and 1, to get
771 = 1 x 771 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 771 is 1
Notice that 1 = HCF(771,1) .
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 724, 447, 771?
Answer: HCF of 724, 447, 771 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 724, 447, 771 using Euclid's Algorithm?
Answer: For arbitrary numbers 724, 447, 771 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.