LCM of 171, 209, 640, 608, 787
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 171, 209, 640, 608, 787 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 171, 209, 640, 608, 787. So, keep reading to learn more.
Given numbers are 171,209,640,608,787
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 171,209,640,608,787 is 947422080.
Find LCM of 171,209,640,608,787 with Prime Factorization
| 2 | 171, 209, 640, 608, 787 |
| 2 | 171, 209, 320, 304, 787 |
| 2 | 171, 209, 160, 152, 787 |
| 2 | 171, 209, 80, 76, 787 |
| 2 | 171, 209, 40, 38, 787 |
| 19 | 171, 209, 20, 19, 787 |
| 9, 11, 20, 1, 787 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 2 x 2 x 19 x 9 x 11 x 20 x 1 x 787 = 947422080
Therefore, the lowest common multiple of 171,209,640,608,787 is 947422080.
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.
171 x 209 x 640 x 608 x 787 = 10944619868160
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.
171 : 1, 3, 9, 19, 57, 171
209 : 1, 11, 19, 209
640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
608 : 1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 608
787 : 1, 787
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 171,209,640,608,787, is 1.
Now, the common factors can be found like this.
171:3x 3x 19
209:11x 19
640:2x 2x 2x 2x 2x 2x 2x 5
608:2x 2x 2x 2x 2x 19
787:787
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 19x 19 = 11552
Therefore, the value for common factors is 11552.
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 = 10944619868160/(1x11552)
LCM = 10944619868160/11552
LCM = 947422080
Thus, we can understand that the LCM of 171,209,640,608,787 is 947422080.
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FAQs on LCM of 171, 209, 640, 608, 787
1. What is the LCM of 171, 209, 640, 608, 787?
Answer: LCM of 171, 209, 640, 608, 787 is 947422080.
2. How to calculate the LCM of 171, 209, 640, 608, 787?
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 171, 209, 640, 608, 787.
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}.