LCM of 347, 390, 690, 644, 868
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 347, 390, 690, 644, 868 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 347, 390, 690, 644, 868. So, keep reading to learn more.
Given numbers are 347,390,690,644,868
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 347,390,690,644,868 is 1350864060.
Find LCM of 347,390,690,644,868 with Prime Factorization
| 2 | 347, 390, 690, 644, 868 |
| 2 | 347, 195, 345, 322, 434 |
| 3 | 347, 195, 345, 161, 217 |
| 5 | 347, 65, 115, 161, 217 |
| 7 | 347, 13, 23, 161, 217 |
| 23 | 347, 13, 23, 23, 31 |
| 347, 13, 1, 1, 31 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 7 x 23 x 347 x 13 x 1 x 1 x 31 = 1350864060
Therefore, the lowest common multiple of 347,390,690,644,868 is 1350864060.
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.
347 x 390 x 690 x 644 x 868 = 52197387278400
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.
347 : 1, 347
390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
868 : 1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 347,390,690,644,868, is 1.
Now, the common factors can be found like this.
347:347
390:2x 3x 5x 13
690:2x 3x 5x 23
644:2x 2x 7x 23
868:2x 2x 7x 31
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 2x 2x 3x 5x 7x 23 = 38640
Therefore, the value for common factors is 38640.
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 = 52197387278400/(1x38640)
LCM = 52197387278400/38640
LCM = 1350864060
Thus, we can understand that the LCM of 347,390,690,644,868 is 1350864060.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 347, 390, 690, 644, 868
1. What is the LCM of 347, 390, 690, 644, 868?
Answer: LCM of 347, 390, 690, 644, 868 is 1350864060.
2. How to calculate the LCM of 347, 390, 690, 644, 868?
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 347, 390, 690, 644, 868.
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}.