Highest Common Factor of 637, 497 using Euclid's algorithm
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, 497 i.e. 7 the largest integer that leaves a remainder zero for all numbers.
HCF of 637, 497 is 7 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, 497 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, 497 is 7.
HCF(637, 497) = 7
HCF of 637, 497 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 637, 497 is 7.
Highest Common Factor of 637,497 is 7
Step 1: Since 637 > 497, we apply the division lemma to 637 and 497, to get
637 = 497 x 1 + 140
Step 2: Since the reminder 497 ≠ 0, we apply division lemma to 140 and 497, to get
497 = 140 x 3 + 77
Step 3: We consider the new divisor 140 and the new remainder 77, and apply the division lemma to get
140 = 77 x 1 + 63
We consider the new divisor 77 and the new remainder 63,and apply the division lemma to get
77 = 63 x 1 + 14
We consider the new divisor 63 and the new remainder 14,and apply the division lemma to get
63 = 14 x 4 + 7
We consider the new divisor 14 and the new remainder 7,and apply the division lemma to get
14 = 7 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 7, the HCF of 637 and 497 is 7
Notice that 7 = HCF(14,7) = HCF(63,14) = HCF(77,63) = HCF(140,77) = HCF(497,140) = HCF(637,497) .
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Frequently Asked Questions on HCF of 637, 497 using Euclid's Algorithm
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, 497?
Answer: HCF of 637, 497 is 7 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 637, 497 using Euclid's Algorithm?
Answer: For arbitrary numbers 637, 497 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.