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 967, 840, 657 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 967, 840, 657 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 967, 840, 657 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 967, 840, 657 is 1.
HCF(967, 840, 657) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 967, 840, 657 is 1.
Step 1: Since 967 > 840, we apply the division lemma to 967 and 840, to get
967 = 840 x 1 + 127
Step 2: Since the reminder 840 ≠ 0, we apply division lemma to 127 and 840, to get
840 = 127 x 6 + 78
Step 3: We consider the new divisor 127 and the new remainder 78, and apply the division lemma to get
127 = 78 x 1 + 49
We consider the new divisor 78 and the new remainder 49,and apply the division lemma to get
78 = 49 x 1 + 29
We consider the new divisor 49 and the new remainder 29,and apply the division lemma to get
49 = 29 x 1 + 20
We consider the new divisor 29 and the new remainder 20,and apply the division lemma to get
29 = 20 x 1 + 9
We consider the new divisor 20 and the new remainder 9,and apply the division lemma to get
20 = 9 x 2 + 2
We consider the new divisor 9 and the new remainder 2,and apply the division lemma to get
9 = 2 x 4 + 1
We consider the new divisor 2 and the new remainder 1,and apply the division lemma 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 967 and 840 is 1
Notice that 1 = HCF(2,1) = HCF(9,2) = HCF(20,9) = HCF(29,20) = HCF(49,29) = HCF(78,49) = HCF(127,78) = HCF(840,127) = HCF(967,840) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 657 > 1, we apply the division lemma to 657 and 1, to get
657 = 1 x 657 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 657 is 1
Notice that 1 = HCF(657,1) .
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 967, 840, 657?
Answer: HCF of 967, 840, 657 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 967, 840, 657 using Euclid's Algorithm?
Answer: For arbitrary numbers 967, 840, 657 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.