LCM of 945, 680, 665, 408, 340
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 945, 680, 665, 408, 340 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 945, 680, 665, 408, 340. So, keep reading to learn more.
Given numbers are 945,680,665,408,340
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 945,680,665,408,340 is 2441880.
Find LCM of 945,680,665,408,340 with Prime Factorization
| 2 | 945, 680, 665, 408, 340 |
| 2 | 945, 340, 665, 204, 170 |
| 2 | 945, 85, 665, 102, 170 |
| 3 | 945, 85, 665, 51, 85 |
| 5 | 315, 85, 665, 17, 85 |
| 7 | 63, 17, 133, 17, 17 |
| 17 | 9, 17, 19, 17, 17 |
| 9, 1, 19, 1, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 3 x 5 x 7 x 17 x 9 x 1 x 19 x 1 x 1 = 2441880
Therefore, the lowest common multiple of 945,680,665,408,340 is 2441880.
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.
945 x 680 x 665 x 408 x 340 = 59279078880000
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.
945 : 1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945
680 : 1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680
665 : 1, 5, 7, 19, 35, 95, 133, 665
408 : 1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408
340 : 1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 945,680,665,408,340, is 1.
Now, the common factors can be found like this.
945:3x 3x 3x 5x 7
680:2x 2x 2x 5x 17
665:5x 7x 19
408:2x 2x 2x 3x 17
340:2x 2x 5x 17
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 5x 5x 5x 7x 17x 17 = 24276000
Therefore, the value for common factors is 24276000.
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 = 59279078880000/(1x24276000)
LCM = 59279078880000/24276000
LCM = 2441880
Thus, we can understand that the LCM of 945,680,665,408,340 is 2441880.
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FAQs on LCM of 945, 680, 665, 408, 340
1. What is the LCM of 945, 680, 665, 408, 340?
Answer: LCM of 945, 680, 665, 408, 340 is 2441880.
2. How to calculate the LCM of 945, 680, 665, 408, 340?
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 945, 680, 665, 408, 340.
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}.