LCM of 392, 144, 721, 315
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 392, 144, 721, 315 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 392, 144, 721, 315. So, keep reading to learn more.
Given numbers are 392,144,721,315
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 392,144,721,315 is 3633840.
Find LCM of 392,144,721,315 with Prime Factorization
| 2 | 392, 144, 721, 315 |
| 2 | 196, 72, 721, 315 |
| 2 | 98, 36, 721, 315 |
| 3 | 49, 18, 721, 315 |
| 3 | 49, 6, 721, 105 |
| 7 | 49, 2, 721, 35 |
| 7, 2, 103, 5 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 3 x 3 x 7 x 7 x 2 x 103 x 5 = 3633840
Therefore, the lowest common multiple of 392,144,721,315 is 3633840.
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.
392 x 144 x 721 x 315 = 12820187520
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.
392 : 1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392
144 : 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144
721 : 1, 7, 103, 721
315 : 1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 392,144,721,315, is 1.
Now, the common factors can be found like this.
392:2x 2x 2x 7x 7
144:2x 2x 2x 2x 3x 3
721:7x 103
315:3x 3x 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 3x 3x 7x 7 = 3528
Therefore, the value for common factors is 3528.
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 = 12820187520/(1x3528)
LCM = 12820187520/3528
LCM = 3633840
Thus, we can understand that the LCM of 392,144,721,315 is 3633840.
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FAQs on LCM of 392, 144, 721, 315
1. What is the LCM of 392, 144, 721, 315?
Answer: LCM of 392, 144, 721, 315 is 3633840.
2. How to calculate the LCM of 392, 144, 721, 315?
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 392, 144, 721, 315.
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}.