LCM of 418, 780, 840, 975
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 418, 780, 840, 975 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 418, 780, 840, 975. So, keep reading to learn more.
Given numbers are 418,780,840,975
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 418,780,840,975 is 11411400.
Find LCM of 418,780,840,975 with Prime Factorization
| 2 | 418, 780, 840, 975 |
| 2 | 209, 390, 420, 975 |
| 3 | 209, 195, 210, 975 |
| 5 | 209, 65, 70, 325 |
| 13 | 209, 13, 14, 65 |
| 209, 1, 14, 5 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 13 x 209 x 1 x 14 x 5 = 11411400
Therefore, the lowest common multiple of 418,780,840,975 is 11411400.
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.
418 x 780 x 840 x 975 = 267026760000
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.
418 : 1, 2, 11, 19, 22, 38, 209, 418
780 : 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780
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
975 : 1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 418,780,840,975, is 1.
Now, the common factors can be found like this.
418:2x 11x 19
780:2x 2x 3x 5x 13
840:2x 2x 2x 3x 5x 7
975:3x 5x 5x 13
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 3x 3x 5x 5x 13 = 23400
Therefore, the value for common factors is 23400.
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 = 267026760000/(1x23400)
LCM = 267026760000/23400
LCM = 11411400
Thus, we can understand that the LCM of 418,780,840,975 is 11411400.
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FAQs on LCM of 418, 780, 840, 975
1. What is the LCM of 418, 780, 840, 975?
Answer: LCM of 418, 780, 840, 975 is 11411400.
2. How to calculate the LCM of 418, 780, 840, 975?
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 418, 780, 840, 975.
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}.