LCM of 390, 423, 620, 845, 931
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 390, 423, 620, 845, 931 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 390, 423, 620, 845, 931. So, keep reading to learn more.
Given numbers are 390,423,620,845,931
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 390,423,620,845,931 is 41263726140.
Find LCM of 390,423,620,845,931 with Prime Factorization
| 2 | 390, 423, 620, 845, 931 |
| 3 | 195, 423, 310, 845, 931 |
| 5 | 65, 141, 310, 845, 931 |
| 13 | 13, 141, 62, 169, 931 |
| 1, 141, 62, 13, 931 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 13 x 1 x 141 x 62 x 13 x 931 = 41263726140
Therefore, the lowest common multiple of 390,423,620,845,931 is 41263726140.
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.
390 x 423 x 620 x 845 x 931 = 80464265973000
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.
390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
423 : 1, 3, 9, 47, 141, 423
620 : 1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620
845 : 1, 5, 13, 65, 169, 845
931 : 1, 7, 19, 49, 133, 931
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 390,423,620,845,931, is 1.
Now, the common factors can be found like this.
390:2x 3x 5x 13
423:3x 3x 47
620:2x 2x 5x 31
845:5x 13x 13
931:7x 7x 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 3x 5x 5x 13 = 1950
Therefore, the value for common factors is 1950.
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 = 80464265973000/(1x1950)
LCM = 80464265973000/1950
LCM = 41263726140
Thus, we can understand that the LCM of 390,423,620,845,931 is 41263726140.
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FAQs on LCM of 390, 423, 620, 845, 931
1. What is the LCM of 390, 423, 620, 845, 931?
Answer: LCM of 390, 423, 620, 845, 931 is 41263726140.
2. How to calculate the LCM of 390, 423, 620, 845, 931?
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 390, 423, 620, 845, 931.
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}.