LCM of 989, 542, 860, 915
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 989, 542, 860, 915 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 989, 542, 860, 915. So, keep reading to learn more.
Given numbers are 989,542,860,915
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 989,542,860,915 is 980949540.
Find LCM of 989,542,860,915 with Prime Factorization
| 2 | 989, 542, 860, 915 |
| 5 | 989, 271, 430, 915 |
| 43 | 989, 271, 86, 183 |
| 23, 271, 2, 183 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 43 x 23 x 271 x 2 x 183 = 980949540
Therefore, the lowest common multiple of 989,542,860,915 is 980949540.
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.
989 x 542 x 860 x 915 = 421808302200
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.
989 : 1, 23, 43, 989
542 : 1, 2, 271, 542
860 : 1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860
915 : 1, 3, 5, 15, 61, 183, 305, 915
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 989,542,860,915, is 1.
Now, the common factors can be found like this.
989:23x 43
542:2x 271
860:2x 2x 5x 43
915:3x 5x 61
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 5x 43 = 430
Therefore, the value for common factors is 430.
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 = 421808302200/(1x430)
LCM = 421808302200/430
LCM = 980949540
Thus, we can understand that the LCM of 989,542,860,915 is 980949540.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 989, 542, 860, 915
1. What is the LCM of 989, 542, 860, 915?
Answer: LCM of 989, 542, 860, 915 is 980949540.
2. How to calculate the LCM of 989, 542, 860, 915?
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 989, 542, 860, 915.
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}.