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 990, 557, 392, 67 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 990, 557, 392, 67 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 990, 557, 392, 67 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 990, 557, 392, 67 is 1.
HCF(990, 557, 392, 67) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 990, 557, 392, 67 is 1.
Step 1: Since 990 > 557, we apply the division lemma to 990 and 557, to get
990 = 557 x 1 + 433
Step 2: Since the reminder 557 ≠ 0, we apply division lemma to 433 and 557, to get
557 = 433 x 1 + 124
Step 3: We consider the new divisor 433 and the new remainder 124, and apply the division lemma to get
433 = 124 x 3 + 61
We consider the new divisor 124 and the new remainder 61,and apply the division lemma to get
124 = 61 x 2 + 2
We consider the new divisor 61 and the new remainder 2,and apply the division lemma to get
61 = 2 x 30 + 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 990 and 557 is 1
Notice that 1 = HCF(2,1) = HCF(61,2) = HCF(124,61) = HCF(433,124) = HCF(557,433) = HCF(990,557) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 392 > 1, we apply the division lemma to 392 and 1, to get
392 = 1 x 392 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 392 is 1
Notice that 1 = HCF(392,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 67 > 1, we apply the division lemma to 67 and 1, to get
67 = 1 x 67 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 67 is 1
Notice that 1 = HCF(67,1) .
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 990, 557, 392, 67?
Answer: HCF of 990, 557, 392, 67 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 990, 557, 392, 67 using Euclid's Algorithm?
Answer: For arbitrary numbers 990, 557, 392, 67 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.