LCM of 804, 917, 780, 840
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 804, 917, 780, 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 804, 917, 780, 840. So, keep reading to learn more.
Given numbers are 804,917,780,840
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 804,917,780,840 is 95844840.
Find LCM of 804,917,780,840 with Prime Factorization
| 2 | 804, 917, 780, 840 |
| 2 | 402, 917, 390, 420 |
| 3 | 201, 917, 195, 210 |
| 5 | 67, 917, 65, 70 |
| 7 | 67, 917, 13, 14 |
| 67, 131, 13, 2 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 7 x 67 x 131 x 13 x 2 = 95844840
Therefore, the lowest common multiple of 804,917,780,840 is 95844840.
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.
804 x 917 x 780 x 840 = 483057993600
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.
804 : 1, 2, 3, 4, 6, 12, 67, 134, 201, 268, 402, 804
917 : 1, 7, 131, 917
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
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 804,917,780,840, is 1.
Now, the common factors can be found like this.
804:2x 2x 3x 67
917:7x 131
780:2x 2x 3x 5x 13
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 3x 3x 5x 7 = 5040
Therefore, the value for common factors is 5040.
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 = 483057993600/(1x5040)
LCM = 483057993600/5040
LCM = 95844840
Thus, we can understand that the LCM of 804,917,780,840 is 95844840.
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FAQs on LCM of 804, 917, 780, 840
1. What is the LCM of 804, 917, 780, 840?
Answer: LCM of 804, 917, 780, 840 is 95844840.
2. How to calculate the LCM of 804, 917, 780, 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 804, 917, 780, 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}.