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 998, 715, 631 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 998, 715, 631 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 998, 715, 631 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 998, 715, 631 is 1.
HCF(998, 715, 631) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 998, 715, 631 is 1.
Step 1: Since 998 > 715, we apply the division lemma to 998 and 715, to get
998 = 715 x 1 + 283
Step 2: Since the reminder 715 ≠ 0, we apply division lemma to 283 and 715, to get
715 = 283 x 2 + 149
Step 3: We consider the new divisor 283 and the new remainder 149, and apply the division lemma to get
283 = 149 x 1 + 134
We consider the new divisor 149 and the new remainder 134,and apply the division lemma to get
149 = 134 x 1 + 15
We consider the new divisor 134 and the new remainder 15,and apply the division lemma to get
134 = 15 x 8 + 14
We consider the new divisor 15 and the new remainder 14,and apply the division lemma to get
15 = 14 x 1 + 1
We consider the new divisor 14 and the new remainder 1,and apply the division lemma to get
14 = 1 x 14 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 998 and 715 is 1
Notice that 1 = HCF(14,1) = HCF(15,14) = HCF(134,15) = HCF(149,134) = HCF(283,149) = HCF(715,283) = HCF(998,715) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 631 > 1, we apply the division lemma to 631 and 1, to get
631 = 1 x 631 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 631 is 1
Notice that 1 = HCF(631,1) .
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 998, 715, 631?
Answer: HCF of 998, 715, 631 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 998, 715, 631 using Euclid's Algorithm?
Answer: For arbitrary numbers 998, 715, 631 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.