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 433, 789, 681, 981 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 433, 789, 681, 981 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 433, 789, 681, 981 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 433, 789, 681, 981 is 1.
HCF(433, 789, 681, 981) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 433, 789, 681, 981 is 1.
Step 1: Since 789 > 433, we apply the division lemma to 789 and 433, to get
789 = 433 x 1 + 356
Step 2: Since the reminder 433 ≠ 0, we apply division lemma to 356 and 433, to get
433 = 356 x 1 + 77
Step 3: We consider the new divisor 356 and the new remainder 77, and apply the division lemma to get
356 = 77 x 4 + 48
We consider the new divisor 77 and the new remainder 48,and apply the division lemma to get
77 = 48 x 1 + 29
We consider the new divisor 48 and the new remainder 29,and apply the division lemma to get
48 = 29 x 1 + 19
We consider the new divisor 29 and the new remainder 19,and apply the division lemma to get
29 = 19 x 1 + 10
We consider the new divisor 19 and the new remainder 10,and apply the division lemma to get
19 = 10 x 1 + 9
We consider the new divisor 10 and the new remainder 9,and apply the division lemma to get
10 = 9 x 1 + 1
We consider the new divisor 9 and the new remainder 1,and apply the division lemma to get
9 = 1 x 9 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 433 and 789 is 1
Notice that 1 = HCF(9,1) = HCF(10,9) = HCF(19,10) = HCF(29,19) = HCF(48,29) = HCF(77,48) = HCF(356,77) = HCF(433,356) = HCF(789,433) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 681 > 1, we apply the division lemma to 681 and 1, to get
681 = 1 x 681 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 681 is 1
Notice that 1 = HCF(681,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 981 > 1, we apply the division lemma to 981 and 1, to get
981 = 1 x 981 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 981 is 1
Notice that 1 = HCF(981,1) .
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 433, 789, 681, 981?
Answer: HCF of 433, 789, 681, 981 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 433, 789, 681, 981 using Euclid's Algorithm?
Answer: For arbitrary numbers 433, 789, 681, 981 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.