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 637, 397, 930 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 637, 397, 930 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 637, 397, 930 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 637, 397, 930 is 1.
HCF(637, 397, 930) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 637, 397, 930 is 1.
Step 1: Since 637 > 397, we apply the division lemma to 637 and 397, to get
637 = 397 x 1 + 240
Step 2: Since the reminder 397 ≠ 0, we apply division lemma to 240 and 397, to get
397 = 240 x 1 + 157
Step 3: We consider the new divisor 240 and the new remainder 157, and apply the division lemma to get
240 = 157 x 1 + 83
We consider the new divisor 157 and the new remainder 83,and apply the division lemma to get
157 = 83 x 1 + 74
We consider the new divisor 83 and the new remainder 74,and apply the division lemma to get
83 = 74 x 1 + 9
We consider the new divisor 74 and the new remainder 9,and apply the division lemma to get
74 = 9 x 8 + 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 637 and 397 is 1
Notice that 1 = HCF(2,1) = HCF(9,2) = HCF(74,9) = HCF(83,74) = HCF(157,83) = HCF(240,157) = HCF(397,240) = HCF(637,397) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 930 > 1, we apply the division lemma to 930 and 1, to get
930 = 1 x 930 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 930 is 1
Notice that 1 = HCF(930,1) .
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 637, 397, 930?
Answer: HCF of 637, 397, 930 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 637, 397, 930 using Euclid's Algorithm?
Answer: For arbitrary numbers 637, 397, 930 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.