LCM of 645, 136, 986, 776
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 645, 136, 986, 776 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 645, 136, 986, 776. So, keep reading to learn more.
Given numbers are 645,136,986,776
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 645,136,986,776 is 246756360.
Find LCM of 645,136,986,776 with Prime Factorization
| 2 | 645, 136, 986, 776 |
| 2 | 645, 68, 493, 388 |
| 2 | 645, 34, 493, 194 |
| 17 | 645, 17, 493, 97 |
| 645, 1, 29, 97 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 17 x 645 x 1 x 29 x 97 = 246756360
Therefore, the lowest common multiple of 645,136,986,776 is 246756360.
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.
645 x 136 x 986 x 776 = 67117729920
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.
645 : 1, 3, 5, 15, 43, 129, 215, 645
136 : 1, 2, 4, 8, 17, 34, 68, 136
986 : 1, 2, 17, 29, 34, 58, 493, 986
776 : 1, 2, 4, 8, 97, 194, 388, 776
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 645,136,986,776, is 1.
Now, the common factors can be found like this.
645:3x 5x 43
136:2x 2x 2x 17
986:2x 17x 29
776:2x 2x 2x 97
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 17 = 272
Therefore, the value for common factors is 272.
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 = 67117729920/(1x272)
LCM = 67117729920/272
LCM = 246756360
Thus, we can understand that the LCM of 645,136,986,776 is 246756360.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 645, 136, 986, 776
1. What is the LCM of 645, 136, 986, 776?
Answer: LCM of 645, 136, 986, 776 is 246756360.
2. How to calculate the LCM of 645, 136, 986, 776?
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 645, 136, 986, 776.
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}.