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 907, 524, 645 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 907, 524, 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 907, 524, 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 907, 524, 645 is 1.
HCF(907, 524, 645) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 907, 524, 645 is 1.
Step 1: Since 907 > 524, we apply the division lemma to 907 and 524, to get
907 = 524 x 1 + 383
Step 2: Since the reminder 524 ≠ 0, we apply division lemma to 383 and 524, to get
524 = 383 x 1 + 141
Step 3: We consider the new divisor 383 and the new remainder 141, and apply the division lemma to get
383 = 141 x 2 + 101
We consider the new divisor 141 and the new remainder 101,and apply the division lemma to get
141 = 101 x 1 + 40
We consider the new divisor 101 and the new remainder 40,and apply the division lemma to get
101 = 40 x 2 + 21
We consider the new divisor 40 and the new remainder 21,and apply the division lemma to get
40 = 21 x 1 + 19
We consider the new divisor 21 and the new remainder 19,and apply the division lemma to get
21 = 19 x 1 + 2
We consider the new divisor 19 and the new remainder 2,and apply the division lemma to get
19 = 2 x 9 + 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 907 and 524 is 1
Notice that 1 = HCF(2,1) = HCF(19,2) = HCF(21,19) = HCF(40,21) = HCF(101,40) = HCF(141,101) = HCF(383,141) = HCF(524,383) = HCF(907,524) .
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 907, 524, 645?
Answer: HCF of 907, 524, 645 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 907, 524, 645 using Euclid's Algorithm?
Answer: For arbitrary numbers 907, 524, 645 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.