LCM of 457, 952, 120, 646
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 457, 952, 120, 646 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 457, 952, 120, 646. So, keep reading to learn more.
Given numbers are 457,952,120,646
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 457,952,120,646 is 123993240.
Find LCM of 457,952,120,646 with Prime Factorization
| 2 | 457, 952, 120, 646 |
| 2 | 457, 476, 60, 323 |
| 2 | 457, 238, 30, 323 |
| 17 | 457, 119, 15, 323 |
| 457, 7, 15, 19 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 17 x 457 x 7 x 15 x 19 = 123993240
Therefore, the lowest common multiple of 457,952,120,646 is 123993240.
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.
457 x 952 x 120 x 646 = 33726161280
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.
457 : 1, 457
952 : 1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 238, 476, 952
120 : 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120
646 : 1, 2, 17, 19, 34, 38, 323, 646
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 457,952,120,646, is 1.
Now, the common factors can be found like this.
457:457
952:2x 2x 2x 7x 17
120:2x 2x 2x 3x 5
646:2x 17x 19
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 = 33726161280/(1x272)
LCM = 33726161280/272
LCM = 123993240
Thus, we can understand that the LCM of 457,952,120,646 is 123993240.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 457, 952, 120, 646
1. What is the LCM of 457, 952, 120, 646?
Answer: LCM of 457, 952, 120, 646 is 123993240.
2. How to calculate the LCM of 457, 952, 120, 646?
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 457, 952, 120, 646.
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}.