LCM of 407, 855, 780, 247
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 407, 855, 780, 247 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 407, 855, 780, 247. So, keep reading to learn more.
Given numbers are 407,855,780,247
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 407,855,780,247 is 18095220.
Find LCM of 407,855,780,247 with Prime Factorization
| 3 | 407, 855, 780, 247 |
| 5 | 407, 285, 260, 247 |
| 13 | 407, 57, 52, 247 |
| 19 | 407, 57, 4, 19 |
| 407, 3, 4, 1 |
Multiply the prime numbers at the bottom and the left side.
3 x 5 x 13 x 19 x 407 x 3 x 4 x 1 = 18095220
Therefore, the lowest common multiple of 407,855,780,247 is 18095220.
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.
407 x 855 x 780 x 247 = 67042790100
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.
407 : 1, 11, 37, 407
855 : 1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855
780 : 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780
247 : 1, 13, 19, 247
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 407,855,780,247, is 1.
Now, the common factors can be found like this.
407:11x 37
855:3x 3x 5x 19
780:2x 2x 3x 5x 13
247:13x 19
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 5x 13x 19 = 3705
Therefore, the value for common factors is 3705.
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 = 67042790100/(1x3705)
LCM = 67042790100/3705
LCM = 18095220
Thus, we can understand that the LCM of 407,855,780,247 is 18095220.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 407, 855, 780, 247
1. What is the LCM of 407, 855, 780, 247?
Answer: LCM of 407, 855, 780, 247 is 18095220.
2. How to calculate the LCM of 407, 855, 780, 247?
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 407, 855, 780, 247.
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}.