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 298, 777, 878 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 298, 777, 878 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 298, 777, 878 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 298, 777, 878 is 1.
HCF(298, 777, 878) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 298, 777, 878 is 1.
Step 1: Since 777 > 298, we apply the division lemma to 777 and 298, to get
777 = 298 x 2 + 181
Step 2: Since the reminder 298 ≠ 0, we apply division lemma to 181 and 298, to get
298 = 181 x 1 + 117
Step 3: We consider the new divisor 181 and the new remainder 117, and apply the division lemma to get
181 = 117 x 1 + 64
We consider the new divisor 117 and the new remainder 64,and apply the division lemma to get
117 = 64 x 1 + 53
We consider the new divisor 64 and the new remainder 53,and apply the division lemma to get
64 = 53 x 1 + 11
We consider the new divisor 53 and the new remainder 11,and apply the division lemma to get
53 = 11 x 4 + 9
We consider the new divisor 11 and the new remainder 9,and apply the division lemma to get
11 = 9 x 1 + 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 298 and 777 is 1
Notice that 1 = HCF(2,1) = HCF(9,2) = HCF(11,9) = HCF(53,11) = HCF(64,53) = HCF(117,64) = HCF(181,117) = HCF(298,181) = HCF(777,298) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 878 > 1, we apply the division lemma to 878 and 1, to get
878 = 1 x 878 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 878 is 1
Notice that 1 = HCF(878,1) .
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 298, 777, 878?
Answer: HCF of 298, 777, 878 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 298, 777, 878 using Euclid's Algorithm?
Answer: For arbitrary numbers 298, 777, 878 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.