LCM of 390, 989, 319, 247, 172
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 390, 989, 319, 247, 172 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 390, 989, 319, 247, 172. So, keep reading to learn more.
Given numbers are 390,989,319,247,172
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 390,989,319,247,172 is 4675576620.
Find LCM of 390,989,319,247,172 with Prime Factorization
| 2 | 390, 989, 319, 247, 172 |
| 13 | 195, 989, 319, 247, 86 |
| 43 | 15, 989, 319, 19, 86 |
| 15, 23, 319, 19, 2 |
Multiply the prime numbers at the bottom and the left side.
2 x 13 x 43 x 15 x 23 x 319 x 19 x 2 = 4675576620
Therefore, the lowest common multiple of 390,989,319,247,172 is 4675576620.
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.
390 x 989 x 319 x 247 x 172 = 5227294661160
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.
390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
989 : 1, 23, 43, 989
319 : 1, 11, 29, 319
247 : 1, 13, 19, 247
172 : 1, 2, 4, 43, 86, 172
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 390,989,319,247,172, is 1.
Now, the common factors can be found like this.
390:2x 3x 5x 13
989:23x 43
319:11x 29
247:13x 19
172:2x 2x 43
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 13x 43 = 1118
Therefore, the value for common factors is 1118.
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 = 5227294661160/(1x1118)
LCM = 5227294661160/1118
LCM = 4675576620
Thus, we can understand that the LCM of 390,989,319,247,172 is 4675576620.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 390, 989, 319, 247, 172
1. What is the LCM of 390, 989, 319, 247, 172?
Answer: LCM of 390, 989, 319, 247, 172 is 4675576620.
2. How to calculate the LCM of 390, 989, 319, 247, 172?
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 390, 989, 319, 247, 172.
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}.