LCM of 838, 280, 722, 980, 870
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 838, 280, 722, 980, 870 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 838, 280, 722, 980, 870. So, keep reading to learn more.
Given numbers are 838,280,722,980,870
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 838,280,722,980,870 is 25792684680.
Find LCM of 838,280,722,980,870 with Prime Factorization
| 2 | 838, 280, 722, 980, 870 |
| 2 | 419, 140, 361, 490, 435 |
| 5 | 419, 70, 361, 245, 435 |
| 7 | 419, 14, 361, 49, 87 |
| 419, 2, 361, 7, 87 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 7 x 419 x 2 x 361 x 7 x 87 = 25792684680
Therefore, the lowest common multiple of 838,280,722,980,870 is 25792684680.
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.
838 x 280 x 722 x 980 x 870 = 144439034208000
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.
838 : 1, 2, 419, 838
280 : 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280
722 : 1, 2, 19, 38, 361, 722
980 : 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980
870 : 1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 838,280,722,980,870, is 2.
Now, the common factors can be found like this.
838:2x 419
280:2x 2x 2x 5x 7
722:2x 19x 19
980:2x 2x 5x 7x 7
870:2x 3x 5x 29
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 5x 5x 7 = 2800
Therefore, the value for common factors is 2800.
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 = 144439034208000/(2x2800)
LCM = 144439034208000/5600
LCM = 25792684680
Thus, we can understand that the LCM of 838,280,722,980,870 is 25792684680.
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FAQs on LCM of 838, 280, 722, 980, 870
1. What is the LCM of 838, 280, 722, 980, 870?
Answer: LCM of 838, 280, 722, 980, 870 is 25792684680.
2. How to calculate the LCM of 838, 280, 722, 980, 870?
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 838, 280, 722, 980, 870.
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}.