LCM of 212, 630, 387, 686, 991
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 212, 630, 387, 686, 991 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 212, 630, 387, 686, 991. So, keep reading to learn more.
Given numbers are 212,630,387,686,991
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 212,630,387,686,991 is 139439110860.
Find LCM of 212,630,387,686,991 with Prime Factorization
| 2 | 212, 630, 387, 686, 991 |
| 3 | 106, 315, 387, 343, 991 |
| 3 | 106, 105, 129, 343, 991 |
| 7 | 106, 35, 43, 343, 991 |
| 106, 5, 43, 49, 991 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 7 x 106 x 5 x 43 x 49 x 991 = 139439110860
Therefore, the lowest common multiple of 212,630,387,686,991 is 139439110860.
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.
212 x 630 x 387 x 686 x 991 = 35138655936720
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.
212 : 1, 2, 4, 53, 106, 212
630 : 1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630
387 : 1, 3, 9, 43, 129, 387
686 : 1, 2, 7, 14, 49, 98, 343, 686
991 : 1, 991
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 212,630,387,686,991, is 1.
Now, the common factors can be found like this.
212:2x 2x 53
630:2x 3x 3x 5x 7
387:3x 3x 43
686:2x 7x 7x 7
991:991
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 2x 3x 3x 7 = 252
Therefore, the value for common factors is 252.
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 = 35138655936720/(1x252)
LCM = 35138655936720/252
LCM = 139439110860
Thus, we can understand that the LCM of 212,630,387,686,991 is 139439110860.
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FAQs on LCM of 212, 630, 387, 686, 991
1. What is the LCM of 212, 630, 387, 686, 991?
Answer: LCM of 212, 630, 387, 686, 991 is 139439110860.
2. How to calculate the LCM of 212, 630, 387, 686, 991?
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 212, 630, 387, 686, 991.
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}.