Highest Common Factor of 788, 961, 990 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 788, 961, 990 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 788, 961, 990 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 788, 961, 990 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 788, 961, 990 is 1.
HCF(788, 961, 990) = 1
HCF of 788, 961, 990 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 788, 961, 990 is 1.
Highest Common Factor of 788,961,990 is 1
Step 1: Since 961 > 788, we apply the division lemma to 961 and 788, to get
961 = 788 x 1 + 173
Step 2: Since the reminder 788 ≠ 0, we apply division lemma to 173 and 788, to get
788 = 173 x 4 + 96
Step 3: We consider the new divisor 173 and the new remainder 96, and apply the division lemma to get
173 = 96 x 1 + 77
We consider the new divisor 96 and the new remainder 77,and apply the division lemma to get
96 = 77 x 1 + 19
We consider the new divisor 77 and the new remainder 19,and apply the division lemma to get
77 = 19 x 4 + 1
We consider the new divisor 19 and the new remainder 1,and apply the division lemma to get
19 = 1 x 19 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 788 and 961 is 1
Notice that 1 = HCF(19,1) = HCF(77,19) = HCF(96,77) = HCF(173,96) = HCF(788,173) = HCF(961,788) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 990 > 1, we apply the division lemma to 990 and 1, to get
990 = 1 x 990 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 990 is 1
Notice that 1 = HCF(990,1) .
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Frequently Asked Questions on HCF of 788, 961, 990 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 788, 961, 990?
Answer: HCF of 788, 961, 990 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 788, 961, 990 using Euclid's Algorithm?
Answer: For arbitrary numbers 788, 961, 990 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.