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 450, 784, 87 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 450, 784, 87 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 450, 784, 87 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 450, 784, 87 is 1.
HCF(450, 784, 87) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 450, 784, 87 is 1.
Step 1: Since 784 > 450, we apply the division lemma to 784 and 450, to get
784 = 450 x 1 + 334
Step 2: Since the reminder 450 ≠ 0, we apply division lemma to 334 and 450, to get
450 = 334 x 1 + 116
Step 3: We consider the new divisor 334 and the new remainder 116, and apply the division lemma to get
334 = 116 x 2 + 102
We consider the new divisor 116 and the new remainder 102,and apply the division lemma to get
116 = 102 x 1 + 14
We consider the new divisor 102 and the new remainder 14,and apply the division lemma to get
102 = 14 x 7 + 4
We consider the new divisor 14 and the new remainder 4,and apply the division lemma to get
14 = 4 x 3 + 2
We consider the new divisor 4 and the new remainder 2,and apply the division lemma to get
4 = 2 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 450 and 784 is 2
Notice that 2 = HCF(4,2) = HCF(14,4) = HCF(102,14) = HCF(116,102) = HCF(334,116) = HCF(450,334) = HCF(784,450) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 87 > 2, we apply the division lemma to 87 and 2, to get
87 = 2 x 43 + 1
Step 2: Since the reminder 2 ≠ 0, we apply division lemma to 1 and 2, to get
2 = 1 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 2 and 87 is 1
Notice that 1 = HCF(2,1) = HCF(87,2) .
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 450, 784, 87?
Answer: HCF of 450, 784, 87 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 450, 784, 87 using Euclid's Algorithm?
Answer: For arbitrary numbers 450, 784, 87 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.