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 392, 623, 872, 561 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 392, 623, 872, 561 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 392, 623, 872, 561 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 392, 623, 872, 561 is 1.
HCF(392, 623, 872, 561) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 392, 623, 872, 561 is 1.
Step 1: Since 623 > 392, we apply the division lemma to 623 and 392, to get
623 = 392 x 1 + 231
Step 2: Since the reminder 392 ≠ 0, we apply division lemma to 231 and 392, to get
392 = 231 x 1 + 161
Step 3: We consider the new divisor 231 and the new remainder 161, and apply the division lemma to get
231 = 161 x 1 + 70
We consider the new divisor 161 and the new remainder 70,and apply the division lemma to get
161 = 70 x 2 + 21
We consider the new divisor 70 and the new remainder 21,and apply the division lemma to get
70 = 21 x 3 + 7
We consider the new divisor 21 and the new remainder 7,and apply the division lemma to get
21 = 7 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 7, the HCF of 392 and 623 is 7
Notice that 7 = HCF(21,7) = HCF(70,21) = HCF(161,70) = HCF(231,161) = HCF(392,231) = HCF(623,392) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 872 > 7, we apply the division lemma to 872 and 7, to get
872 = 7 x 124 + 4
Step 2: Since the reminder 7 ≠ 0, we apply division lemma to 4 and 7, to get
7 = 4 x 1 + 3
Step 3: We consider the new divisor 4 and the new remainder 3, and apply the division lemma to get
4 = 3 x 1 + 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 7 and 872 is 1
Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(7,4) = HCF(872,7) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 561 > 1, we apply the division lemma to 561 and 1, to get
561 = 1 x 561 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 561 is 1
Notice that 1 = HCF(561,1) .
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 392, 623, 872, 561?
Answer: HCF of 392, 623, 872, 561 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 392, 623, 872, 561 using Euclid's Algorithm?
Answer: For arbitrary numbers 392, 623, 872, 561 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.