LCM of 655, 398, 812
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 655, 398, 812 with the LCM of Two or More Numbers Calculator. Here we are teaching you two different methods through which you can calculate the LCM of 655, 398, 812. So, keep reading to learn more.
Given numbers are 655,398,812
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 655,398,812 is 105840140.
Find LCM of 655,398,812 with Prime Factorization
| 2 | 655, 398, 812 |
| 655, 199, 406 |
Multiply the prime numbers at the bottom and the left side.
2 x 655 x 199 x 406 = 105840140
Therefore, the lowest common multiple of 655,398,812 is 105840140.
LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
Firstly, we have to find the product of all the numbers.
655 x 398 x 812 = 211680280
Then, let us find the GCF of these five numbers. To do so, we have to list down the factors for each number and choose the highest factor that is in all of the lists.
655 : 1, 5, 131, 655
398 : 1, 2, 199, 398
812 : 1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 655,398,812, is 1.
Now, the common factors can be found like this.
655:5x 131
398:2x 199
812:2x 2x 7x 29
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2 = 2
Therefore, the value for common factors is 2.
Now that we have all the elements of the formula, we can plug them in to calculate the LCM.
LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
LCM = 211680280/(1x2)
LCM = 211680280/2
LCM = 105840140
Thus, we can understand that the LCM of 655,398,812 is 105840140.
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FAQs on LCM of 655, 398, 812
1. What is the LCM of 655, 398, 812?
Answer: LCM of 655, 398, 812 is 105840140.
2. How to calculate the LCM of 655, 398, 812?
The LCM can be found using two methods. You can either use the LCM formula or the prime factorization method to calculate the LCM of 655, 398, 812.
3. What is the LCM formula?
The LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}.