LCM of 730, 280, 297, 380, 840
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 730, 280, 297, 380, 840 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 730, 280, 297, 380, 840. So, keep reading to learn more.
Given numbers are 730,280,297,380,840
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 730,280,297,380,840 is 115342920.
Find LCM of 730,280,297,380,840 with Prime Factorization
| 2 | 730, 280, 297, 380, 840 |
| 2 | 365, 140, 297, 190, 420 |
| 2 | 365, 70, 297, 95, 210 |
| 3 | 365, 35, 297, 95, 105 |
| 5 | 365, 35, 99, 95, 35 |
| 7 | 73, 7, 99, 19, 7 |
| 73, 1, 99, 19, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 3 x 5 x 7 x 73 x 1 x 99 x 19 x 1 = 115342920
Therefore, the lowest common multiple of 730,280,297,380,840 is 115342920.
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.
730 x 280 x 297 x 380 x 840 = 19377610560000
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.
730 : 1, 2, 5, 10, 73, 146, 365, 730
280 : 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280
297 : 1, 3, 9, 11, 27, 33, 99, 297
380 : 1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380
840 : 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 730,280,297,380,840, is 1.
Now, the common factors can be found like this.
730:2x 5x 73
280:2x 2x 2x 5x 7
297:3x 3x 3x 11
380:2x 2x 5x 19
840:2x 2x 2x 3x 5x 7
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 2x 2x 3x 5x 5x 5x 7 = 168000
Therefore, the value for common factors is 168000.
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 = 19377610560000/(1x168000)
LCM = 19377610560000/168000
LCM = 115342920
Thus, we can understand that the LCM of 730,280,297,380,840 is 115342920.
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FAQs on LCM of 730, 280, 297, 380, 840
1. What is the LCM of 730, 280, 297, 380, 840?
Answer: LCM of 730, 280, 297, 380, 840 is 115342920.
2. How to calculate the LCM of 730, 280, 297, 380, 840?
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 730, 280, 297, 380, 840.
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}.