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 278, 418, 825, 23 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 278, 418, 825, 23 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 278, 418, 825, 23 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 278, 418, 825, 23 is 1.
HCF(278, 418, 825, 23) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 278, 418, 825, 23 is 1.
Step 1: Since 418 > 278, we apply the division lemma to 418 and 278, to get
418 = 278 x 1 + 140
Step 2: Since the reminder 278 ≠ 0, we apply division lemma to 140 and 278, to get
278 = 140 x 1 + 138
Step 3: We consider the new divisor 140 and the new remainder 138, and apply the division lemma to get
140 = 138 x 1 + 2
We consider the new divisor 138 and the new remainder 2, and apply the division lemma to get
138 = 2 x 69 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 278 and 418 is 2
Notice that 2 = HCF(138,2) = HCF(140,138) = HCF(278,140) = HCF(418,278) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 825 > 2, we apply the division lemma to 825 and 2, to get
825 = 2 x 412 + 1
Step 2: Since the reminder 2 ≠ 0, we apply division lemma to 1 and 2, 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 2 and 825 is 1
Notice that 1 = HCF(2,1) = HCF(825,2) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 23 > 1, we apply the division lemma to 23 and 1, to get
23 = 1 x 23 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 23 is 1
Notice that 1 = HCF(23,1) .
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 278, 418, 825, 23?
Answer: HCF of 278, 418, 825, 23 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 278, 418, 825, 23 using Euclid's Algorithm?
Answer: For arbitrary numbers 278, 418, 825, 23 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.