Highest Common Factor of 39, 98, 21, 973 using Euclid's algorithm
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 39, 98, 21, 973 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 39, 98, 21, 973 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 39, 98, 21, 973 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 39, 98, 21, 973 is 1.
HCF(39, 98, 21, 973) = 1
HCF of 39, 98, 21, 973 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 39, 98, 21, 973 is 1.
Highest Common Factor of 39,98,21,973 is 1
Step 1: Since 98 > 39, we apply the division lemma to 98 and 39, to get
98 = 39 x 2 + 20
Step 2: Since the reminder 39 ≠ 0, we apply division lemma to 20 and 39, to get
39 = 20 x 1 + 19
Step 3: We consider the new divisor 20 and the new remainder 19, and apply the division lemma to get
20 = 19 x 1 + 1
We consider the new divisor 19 and the new remainder 1, and apply the division lemma to get
19 = 1 x 19 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 39 and 98 is 1
Notice that 1 = HCF(19,1) = HCF(20,19) = HCF(39,20) = HCF(98,39) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 21 > 1, we apply the division lemma to 21 and 1, to get
21 = 1 x 21 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 21 is 1
Notice that 1 = HCF(21,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 973 > 1, we apply the division lemma to 973 and 1, to get
973 = 1 x 973 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 973 is 1
Notice that 1 = HCF(973,1) .
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Frequently Asked Questions on HCF of 39, 98, 21, 973 using Euclid's Algorithm
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 39, 98, 21, 973?
Answer: HCF of 39, 98, 21, 973 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 39, 98, 21, 973 using Euclid's Algorithm?
Answer: For arbitrary numbers 39, 98, 21, 973 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.