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 749, 542, 775 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 749, 542, 775 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 749, 542, 775 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 749, 542, 775 is 1.
HCF(749, 542, 775) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 749, 542, 775 is 1.
Step 1: Since 749 > 542, we apply the division lemma to 749 and 542, to get
749 = 542 x 1 + 207
Step 2: Since the reminder 542 ≠ 0, we apply division lemma to 207 and 542, to get
542 = 207 x 2 + 128
Step 3: We consider the new divisor 207 and the new remainder 128, and apply the division lemma to get
207 = 128 x 1 + 79
We consider the new divisor 128 and the new remainder 79,and apply the division lemma to get
128 = 79 x 1 + 49
We consider the new divisor 79 and the new remainder 49,and apply the division lemma to get
79 = 49 x 1 + 30
We consider the new divisor 49 and the new remainder 30,and apply the division lemma to get
49 = 30 x 1 + 19
We consider the new divisor 30 and the new remainder 19,and apply the division lemma to get
30 = 19 x 1 + 11
We consider the new divisor 19 and the new remainder 11,and apply the division lemma to get
19 = 11 x 1 + 8
We consider the new divisor 11 and the new remainder 8,and apply the division lemma to get
11 = 8 x 1 + 3
We consider the new divisor 8 and the new remainder 3,and apply the division lemma to get
8 = 3 x 2 + 2
We consider the new divisor 3 and the new remainder 2,and apply the division lemma to get
3 = 2 x 1 + 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 749 and 542 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(8,3) = HCF(11,8) = HCF(19,11) = HCF(30,19) = HCF(49,30) = HCF(79,49) = HCF(128,79) = HCF(207,128) = HCF(542,207) = HCF(749,542) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 775 > 1, we apply the division lemma to 775 and 1, to get
775 = 1 x 775 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 775 is 1
Notice that 1 = HCF(775,1) .
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 749, 542, 775?
Answer: HCF of 749, 542, 775 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 749, 542, 775 using Euclid's Algorithm?
Answer: For arbitrary numbers 749, 542, 775 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.