Highest Common Factor of 637, 7455 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, 7455 i.e. 7 the largest integer that leaves a remainder zero for all numbers.
HCF of 637, 7455 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, 7455 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, 7455 is 7.
HCF(637, 7455) = 7
HCF of 637, 7455 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, 7455 is 7.
Highest Common Factor of 637,7455 is 7
Step 1: Since 7455 > 637, we apply the division lemma to 7455 and 637, to get
7455 = 637 x 11 + 448
Step 2: Since the reminder 637 ≠ 0, we apply division lemma to 448 and 637, to get
637 = 448 x 1 + 189
Step 3: We consider the new divisor 448 and the new remainder 189, and apply the division lemma to get
448 = 189 x 2 + 70
We consider the new divisor 189 and the new remainder 70,and apply the division lemma to get
189 = 70 x 2 + 49
We consider the new divisor 70 and the new remainder 49,and apply the division lemma to get
70 = 49 x 1 + 21
We consider the new divisor 49 and the new remainder 21,and apply the division lemma to get
49 = 21 x 2 + 7
We consider the new divisor 21 and the new remainder 7,and apply the division lemma to get
21 = 7 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 7, the HCF of 637 and 7455 is 7
Notice that 7 = HCF(21,7) = HCF(49,21) = HCF(70,49) = HCF(189,70) = HCF(448,189) = HCF(637,448) = HCF(7455,637) .
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Frequently Asked Questions on HCF of 637, 7455 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, 7455?
Answer: HCF of 637, 7455 is 7 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 637, 7455 using Euclid's Algorithm?
Answer: For arbitrary numbers 637, 7455 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.