LCM of 960, 138, 840, 624
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 960, 138, 840, 624 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 960, 138, 840, 624. So, keep reading to learn more.
Given numbers are 960,138,840,624
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 960,138,840,624 is 2009280.
Find LCM of 960,138,840,624 with Prime Factorization
| 2 | 960, 138, 840, 624 |
| 2 | 480, 69, 420, 312 |
| 2 | 240, 69, 210, 156 |
| 2 | 120, 69, 105, 78 |
| 3 | 60, 69, 105, 39 |
| 5 | 20, 23, 35, 13 |
| 4, 23, 7, 13 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 2 x 3 x 5 x 4 x 23 x 7 x 13 = 2009280
Therefore, the lowest common multiple of 960,138,840,624 is 2009280.
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.
960 x 138 x 840 x 624 = 69440716800
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.
960 : 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960
138 : 1, 2, 3, 6, 23, 46, 69, 138
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
624 : 1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624
6 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 960,138,840,624, is 6.
Now, the common factors can be found like this.
960:2x 2x 2x 2x 2x 2x 3x 5
138:2x 3x 23
840:2x 2x 2x 3x 5x 7
624:2x 2x 2x 2x 3x 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 2x 2x 2x 2x 3x 3x 5 = 5760
Therefore, the value for common factors is 5760.
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 = 69440716800/(6x5760)
LCM = 69440716800/34560
LCM = 2009280
Thus, we can understand that the LCM of 960,138,840,624 is 2009280.
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FAQs on LCM of 960, 138, 840, 624
1. What is the LCM of 960, 138, 840, 624?
Answer: LCM of 960, 138, 840, 624 is 2009280.
2. How to calculate the LCM of 960, 138, 840, 624?
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 960, 138, 840, 624.
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}.