LCM of 785, 856, 320, 272
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 785, 856, 320, 272 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 785, 856, 320, 272. So, keep reading to learn more.
Given numbers are 785,856,320,272
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 785,856,320,272 is 91386560.
Find LCM of 785,856,320,272 with Prime Factorization
| 2 | 785, 856, 320, 272 |
| 2 | 785, 428, 160, 136 |
| 2 | 785, 214, 80, 68 |
| 2 | 785, 107, 40, 34 |
| 5 | 785, 107, 20, 17 |
| 157, 107, 4, 17 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 2 x 5 x 157 x 107 x 4 x 17 = 91386560
Therefore, the lowest common multiple of 785,856,320,272 is 91386560.
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.
785 x 856 x 320 x 272 = 58487398400
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.
785 : 1, 5, 157, 785
856 : 1, 2, 4, 8, 107, 214, 428, 856
320 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320
272 : 1, 2, 4, 8, 16, 17, 34, 68, 136, 272
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 785,856,320,272, is 1.
Now, the common factors can be found like this.
785:5x 157
856:2x 2x 2x 107
320:2x 2x 2x 2x 2x 2x 5
272:2x 2x 2x 2x 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 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 = 58487398400/(1x640)
LCM = 58487398400/640
LCM = 91386560
Thus, we can understand that the LCM of 785,856,320,272 is 91386560.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 785, 856, 320, 272
1. What is the LCM of 785, 856, 320, 272?
Answer: LCM of 785, 856, 320, 272 is 91386560.
2. How to calculate the LCM of 785, 856, 320, 272?
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 785, 856, 320, 272.
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}.