LCM of 354, 640, 649, 718
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 354, 640, 649, 718 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 354, 640, 649, 718. So, keep reading to learn more.
Given numbers are 354,640,649,718
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 354,640,649,718 is 447342720.
Find LCM of 354,640,649,718 with Prime Factorization
| 2 | 354, 640, 649, 718 |
| 59 | 177, 320, 649, 359 |
| 3, 320, 11, 359 |
Multiply the prime numbers at the bottom and the left side.
2 x 59 x 3 x 320 x 11 x 359 = 447342720
Therefore, the lowest common multiple of 354,640,649,718 is 447342720.
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.
354 x 640 x 649 x 718 = 105572881920
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.
354 : 1, 2, 3, 6, 59, 118, 177, 354
640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
649 : 1, 11, 59, 649
718 : 1, 2, 359, 718
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 354,640,649,718, is 1.
Now, the common factors can be found like this.
354:2x 3x 59
640:2x 2x 2x 2x 2x 2x 2x 5
649:11x 59
718:2x 359
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 59 = 236
Therefore, the value for common factors is 236.
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 = 105572881920/(1x236)
LCM = 105572881920/236
LCM = 447342720
Thus, we can understand that the LCM of 354,640,649,718 is 447342720.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 354, 640, 649, 718
1. What is the LCM of 354, 640, 649, 718?
Answer: LCM of 354, 640, 649, 718 is 447342720.
2. How to calculate the LCM of 354, 640, 649, 718?
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 354, 640, 649, 718.
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}.