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 251, 459, 780 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 251, 459, 780 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 251, 459, 780 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 251, 459, 780 is 1.
HCF(251, 459, 780) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 251, 459, 780 is 1.
Step 1: Since 459 > 251, we apply the division lemma to 459 and 251, to get
459 = 251 x 1 + 208
Step 2: Since the reminder 251 ≠ 0, we apply division lemma to 208 and 251, to get
251 = 208 x 1 + 43
Step 3: We consider the new divisor 208 and the new remainder 43, and apply the division lemma to get
208 = 43 x 4 + 36
We consider the new divisor 43 and the new remainder 36,and apply the division lemma to get
43 = 36 x 1 + 7
We consider the new divisor 36 and the new remainder 7,and apply the division lemma to get
36 = 7 x 5 + 1
We consider the new divisor 7 and the new remainder 1,and apply the division lemma to get
7 = 1 x 7 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 251 and 459 is 1
Notice that 1 = HCF(7,1) = HCF(36,7) = HCF(43,36) = HCF(208,43) = HCF(251,208) = HCF(459,251) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 780 > 1, we apply the division lemma to 780 and 1, to get
780 = 1 x 780 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 780 is 1
Notice that 1 = HCF(780,1) .
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 251, 459, 780?
Answer: HCF of 251, 459, 780 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 251, 459, 780 using Euclid's Algorithm?
Answer: For arbitrary numbers 251, 459, 780 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.