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 545, 850, 977 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 545, 850, 977 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 545, 850, 977 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 545, 850, 977 is 1.
HCF(545, 850, 977) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 545, 850, 977 is 1.
Step 1: Since 850 > 545, we apply the division lemma to 850 and 545, to get
850 = 545 x 1 + 305
Step 2: Since the reminder 545 ≠ 0, we apply division lemma to 305 and 545, to get
545 = 305 x 1 + 240
Step 3: We consider the new divisor 305 and the new remainder 240, and apply the division lemma to get
305 = 240 x 1 + 65
We consider the new divisor 240 and the new remainder 65,and apply the division lemma to get
240 = 65 x 3 + 45
We consider the new divisor 65 and the new remainder 45,and apply the division lemma to get
65 = 45 x 1 + 20
We consider the new divisor 45 and the new remainder 20,and apply the division lemma to get
45 = 20 x 2 + 5
We consider the new divisor 20 and the new remainder 5,and apply the division lemma to get
20 = 5 x 4 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 545 and 850 is 5
Notice that 5 = HCF(20,5) = HCF(45,20) = HCF(65,45) = HCF(240,65) = HCF(305,240) = HCF(545,305) = HCF(850,545) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 977 > 5, we apply the division lemma to 977 and 5, to get
977 = 5 x 195 + 2
Step 2: Since the reminder 5 ≠ 0, we apply division lemma to 2 and 5, to get
5 = 2 x 2 + 1
Step 3: 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 5 and 977 is 1
Notice that 1 = HCF(2,1) = HCF(5,2) = HCF(977,5) .
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 545, 850, 977?
Answer: HCF of 545, 850, 977 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 545, 850, 977 using Euclid's Algorithm?
Answer: For arbitrary numbers 545, 850, 977 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.