LCM of 280, 546, 845, 989
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 280, 546, 845, 989 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 280, 546, 845, 989. So, keep reading to learn more.
Given numbers are 280,546,845,989
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 280,546,845,989 is 140398440.
Find LCM of 280,546,845,989 with Prime Factorization
| 2 | 280, 546, 845, 989 |
| 5 | 140, 273, 845, 989 |
| 7 | 28, 273, 169, 989 |
| 13 | 4, 39, 169, 989 |
| 4, 3, 13, 989 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 7 x 13 x 4 x 3 x 13 x 989 = 140398440
Therefore, the lowest common multiple of 280,546,845,989 is 140398440.
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.
280 x 546 x 845 x 989 = 127762580400
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.
280 : 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280
546 : 1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 182, 273, 546
845 : 1, 5, 13, 65, 169, 845
989 : 1, 23, 43, 989
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 280,546,845,989, is 1.
Now, the common factors can be found like this.
280:2x 2x 2x 5x 7
546:2x 3x 7x 13
845:5x 13x 13
989:23x 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 5x 7x 13 = 910
Therefore, the value for common factors is 910.
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 = 127762580400/(1x910)
LCM = 127762580400/910
LCM = 140398440
Thus, we can understand that the LCM of 280,546,845,989 is 140398440.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 280, 546, 845, 989
1. What is the LCM of 280, 546, 845, 989?
Answer: LCM of 280, 546, 845, 989 is 140398440.
2. How to calculate the LCM of 280, 546, 845, 989?
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 280, 546, 845, 989.
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}.