LCM of 128, 736, 515, 397, 140
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 128, 736, 515, 397, 140 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 128, 736, 515, 397, 140. So, keep reading to learn more.
Given numbers are 128,736,515,397,140
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 128,736,515,397,140 is 4213408640.
Find LCM of 128,736,515,397,140 with Prime Factorization
| 2 | 128, 736, 515, 397, 140 |
| 2 | 64, 368, 515, 397, 70 |
| 2 | 32, 184, 515, 397, 35 |
| 2 | 16, 92, 515, 397, 35 |
| 2 | 8, 46, 515, 397, 35 |
| 5 | 4, 23, 515, 397, 35 |
| 4, 23, 103, 397, 7 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 2 x 2 x 5 x 4 x 23 x 103 x 397 x 7 = 4213408640
Therefore, the lowest common multiple of 128,736,515,397,140 is 4213408640.
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.
128 x 736 x 515 x 397 x 140 = 2696581529600
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.
128 : 1, 2, 4, 8, 16, 32, 64, 128
736 : 1, 2, 4, 8, 16, 23, 32, 46, 92, 184, 368, 736
515 : 1, 5, 103, 515
397 : 1, 397
140 : 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 128,736,515,397,140, is 1.
Now, the common factors can be found like this.
128:2x 2x 2x 2x 2x 2x 2
736:2x 2x 2x 2x 2x 23
515:5x 103
397:397
140:2x 2x 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 2x 2x 2x 2x 2x 2x 5 = 640
Therefore, the value for common factors is 640.
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 = 2696581529600/(1x640)
LCM = 2696581529600/640
LCM = 4213408640
Thus, we can understand that the LCM of 128,736,515,397,140 is 4213408640.
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FAQs on LCM of 128, 736, 515, 397, 140
1. What is the LCM of 128, 736, 515, 397, 140?
Answer: LCM of 128, 736, 515, 397, 140 is 4213408640.
2. How to calculate the LCM of 128, 736, 515, 397, 140?
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 128, 736, 515, 397, 140.
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}.