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 445, 780 i.e. 5 the largest integer that leaves a remainder zero for all numbers.
HCF of 445, 780 is 5 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 445, 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 445, 780 is 5.
HCF(445, 780) = 5
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 445, 780 is 5.
Step 1: Since 780 > 445, we apply the division lemma to 780 and 445, to get
780 = 445 x 1 + 335
Step 2: Since the reminder 445 ≠ 0, we apply division lemma to 335 and 445, to get
445 = 335 x 1 + 110
Step 3: We consider the new divisor 335 and the new remainder 110, and apply the division lemma to get
335 = 110 x 3 + 5
We consider the new divisor 110 and the new remainder 5, and apply the division lemma to get
110 = 5 x 22 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 445 and 780 is 5
Notice that 5 = HCF(110,5) = HCF(335,110) = HCF(445,335) = HCF(780,445) .
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 445, 780?
Answer: HCF of 445, 780 is 5 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 445, 780 using Euclid's Algorithm?
Answer: For arbitrary numbers 445, 780 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.