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 973, 564, 638, 970 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 973, 564, 638, 970 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 973, 564, 638, 970 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 973, 564, 638, 970 is 1.
HCF(973, 564, 638, 970) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 973, 564, 638, 970 is 1.
Step 1: Since 973 > 564, we apply the division lemma to 973 and 564, to get
973 = 564 x 1 + 409
Step 2: Since the reminder 564 ≠ 0, we apply division lemma to 409 and 564, to get
564 = 409 x 1 + 155
Step 3: We consider the new divisor 409 and the new remainder 155, and apply the division lemma to get
409 = 155 x 2 + 99
We consider the new divisor 155 and the new remainder 99,and apply the division lemma to get
155 = 99 x 1 + 56
We consider the new divisor 99 and the new remainder 56,and apply the division lemma to get
99 = 56 x 1 + 43
We consider the new divisor 56 and the new remainder 43,and apply the division lemma to get
56 = 43 x 1 + 13
We consider the new divisor 43 and the new remainder 13,and apply the division lemma to get
43 = 13 x 3 + 4
We consider the new divisor 13 and the new remainder 4,and apply the division lemma to get
13 = 4 x 3 + 1
We consider the new divisor 4 and the new remainder 1,and apply the division lemma to get
4 = 1 x 4 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 973 and 564 is 1
Notice that 1 = HCF(4,1) = HCF(13,4) = HCF(43,13) = HCF(56,43) = HCF(99,56) = HCF(155,99) = HCF(409,155) = HCF(564,409) = HCF(973,564) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 638 > 1, we apply the division lemma to 638 and 1, to get
638 = 1 x 638 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 638 is 1
Notice that 1 = HCF(638,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 970 > 1, we apply the division lemma to 970 and 1, to get
970 = 1 x 970 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 970 is 1
Notice that 1 = HCF(970,1) .
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 973, 564, 638, 970?
Answer: HCF of 973, 564, 638, 970 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 973, 564, 638, 970 using Euclid's Algorithm?
Answer: For arbitrary numbers 973, 564, 638, 970 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.