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 719, 670, 645 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 719, 670, 645 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 719, 670, 645 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 719, 670, 645 is 1.
HCF(719, 670, 645) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 719, 670, 645 is 1.
Step 1: Since 719 > 670, we apply the division lemma to 719 and 670, to get
719 = 670 x 1 + 49
Step 2: Since the reminder 670 ≠ 0, we apply division lemma to 49 and 670, to get
670 = 49 x 13 + 33
Step 3: We consider the new divisor 49 and the new remainder 33, and apply the division lemma to get
49 = 33 x 1 + 16
We consider the new divisor 33 and the new remainder 16,and apply the division lemma to get
33 = 16 x 2 + 1
We consider the new divisor 16 and the new remainder 1,and apply the division lemma to get
16 = 1 x 16 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 719 and 670 is 1
Notice that 1 = HCF(16,1) = HCF(33,16) = HCF(49,33) = HCF(670,49) = HCF(719,670) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 645 > 1, we apply the division lemma to 645 and 1, to get
645 = 1 x 645 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 645 is 1
Notice that 1 = HCF(645,1) .
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 719, 670, 645?
Answer: HCF of 719, 670, 645 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 719, 670, 645 using Euclid's Algorithm?
Answer: For arbitrary numbers 719, 670, 645 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.