LCM of 654, 329, 692, 390, 981
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 654, 329, 692, 390, 981 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 654, 329, 692, 390, 981. So, keep reading to learn more.
Given numbers are 654,329,692,390,981
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 654,329,692,390,981 is 14517250020.
Find LCM of 654,329,692,390,981 with Prime Factorization
| 2 | 654, 329, 692, 390, 981 |
| 3 | 327, 329, 346, 195, 981 |
| 109 | 109, 329, 346, 65, 327 |
| 1, 329, 346, 65, 3 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 109 x 1 x 329 x 346 x 65 x 3 = 14517250020
Therefore, the lowest common multiple of 654,329,692,390,981 is 14517250020.
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.
654 x 329 x 692 x 390 x 981 = 56965689078480
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.
654 : 1, 2, 3, 6, 109, 218, 327, 654
329 : 1, 7, 47, 329
692 : 1, 2, 4, 173, 346, 692
390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
981 : 1, 3, 9, 109, 327, 981
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 654,329,692,390,981, is 1.
Now, the common factors can be found like this.
654:2x 3x 109
329:7x 47
692:2x 2x 173
390:2x 3x 5x 13
981:3x 3x 109
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 3x 3x 109 = 3924
Therefore, the value for common factors is 3924.
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 = 56965689078480/(1x3924)
LCM = 56965689078480/3924
LCM = 14517250020
Thus, we can understand that the LCM of 654,329,692,390,981 is 14517250020.
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FAQs on LCM of 654, 329, 692, 390, 981
1. What is the LCM of 654, 329, 692, 390, 981?
Answer: LCM of 654, 329, 692, 390, 981 is 14517250020.
2. How to calculate the LCM of 654, 329, 692, 390, 981?
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 654, 329, 692, 390, 981.
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}.