LCM of 659, 615, 665, 390, 840
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 659, 615, 665, 390, 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 659, 615, 665, 390, 840. So, keep reading to learn more.
Given numbers are 659,615,665,390,840
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 659,615,665,390,840 is 5605902120.
Find LCM of 659,615,665,390,840 with Prime Factorization
| 2 | 659, 615, 665, 390, 840 |
| 3 | 659, 615, 665, 195, 420 |
| 5 | 659, 205, 665, 65, 140 |
| 7 | 659, 41, 133, 13, 28 |
| 659, 41, 19, 13, 4 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 7 x 659 x 41 x 19 x 13 x 4 = 5605902120
Therefore, the lowest common multiple of 659,615,665,390,840 is 5605902120.
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.
659 x 615 x 665 x 390 x 840 = 88292958390000
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.
659 : 1, 659
615 : 1, 3, 5, 15, 41, 123, 205, 615
665 : 1, 5, 7, 19, 35, 95, 133, 665
390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
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 659,615,665,390,840, is 1.
Now, the common factors can be found like this.
659:659
615:3x 5x 41
665:5x 7x 19
390:2x 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 3x 3x 5x 5x 5x 7 = 15750
Therefore, the value for common factors is 15750.
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 = 88292958390000/(1x15750)
LCM = 88292958390000/15750
LCM = 5605902120
Thus, we can understand that the LCM of 659,615,665,390,840 is 5605902120.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 659, 615, 665, 390, 840
1. What is the LCM of 659, 615, 665, 390, 840?
Answer: LCM of 659, 615, 665, 390, 840 is 5605902120.
2. How to calculate the LCM of 659, 615, 665, 390, 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 659, 615, 665, 390, 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}.