LCM of 792, 840, 916, 990
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 792, 840, 916, 990 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 792, 840, 916, 990. So, keep reading to learn more.
Given numbers are 792,840,916,990
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 792,840,916,990 is 6347880.
Find LCM of 792,840,916,990 with Prime Factorization
| 2 | 792, 840, 916, 990 |
| 2 | 396, 420, 458, 495 |
| 2 | 198, 210, 229, 495 |
| 3 | 99, 105, 229, 495 |
| 3 | 33, 35, 229, 165 |
| 5 | 11, 35, 229, 55 |
| 11 | 11, 7, 229, 11 |
| 1, 7, 229, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 3 x 3 x 5 x 11 x 1 x 7 x 229 x 1 = 6347880
Therefore, the lowest common multiple of 792,840,916,990 is 6347880.
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.
792 x 840 x 916 x 990 = 603302515200
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.
792 : 1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 33, 36, 44, 66, 72, 88, 99, 132, 198, 264, 396, 792
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
916 : 1, 2, 4, 229, 458, 916
990 : 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 792,840,916,990, is 2.
Now, the common factors can be found like this.
792:2x 2x 2x 3x 3x 11
840:2x 2x 2x 3x 5x 7
916:2x 2x 229
990:2x 3x 3x 5x 11
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 3x 3x 3x 5x 11 = 47520
Therefore, the value for common factors is 47520.
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 = 603302515200/(2x47520)
LCM = 603302515200/95040
LCM = 6347880
Thus, we can understand that the LCM of 792,840,916,990 is 6347880.
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FAQs on LCM of 792, 840, 916, 990
1. What is the LCM of 792, 840, 916, 990?
Answer: LCM of 792, 840, 916, 990 is 6347880.
2. How to calculate the LCM of 792, 840, 916, 990?
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 792, 840, 916, 990.
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}.