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 87, 46, 49, 649 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 87, 46, 49, 649 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 87, 46, 49, 649 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 87, 46, 49, 649 is 1.
HCF(87, 46, 49, 649) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 87, 46, 49, 649 is 1.
Step 1: Since 87 > 46, we apply the division lemma to 87 and 46, to get
87 = 46 x 1 + 41
Step 2: Since the reminder 46 ≠ 0, we apply division lemma to 41 and 46, to get
46 = 41 x 1 + 5
Step 3: We consider the new divisor 41 and the new remainder 5, and apply the division lemma to get
41 = 5 x 8 + 1
We consider the new divisor 5 and the new remainder 1, and apply the division lemma to get
5 = 1 x 5 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 87 and 46 is 1
Notice that 1 = HCF(5,1) = HCF(41,5) = HCF(46,41) = HCF(87,46) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 49 > 1, we apply the division lemma to 49 and 1, to get
49 = 1 x 49 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 49 is 1
Notice that 1 = HCF(49,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 649 > 1, we apply the division lemma to 649 and 1, to get
649 = 1 x 649 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 649 is 1
Notice that 1 = HCF(649,1) .
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 87, 46, 49, 649?
Answer: HCF of 87, 46, 49, 649 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 87, 46, 49, 649 using Euclid's Algorithm?
Answer: For arbitrary numbers 87, 46, 49, 649 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.