LCM of 747, 407, 305, 990
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 747, 407, 305, 990 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 747, 407, 305, 990. So, keep reading to learn more.
Given numbers are 747,407,305,990
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 747,407,305,990 is 185457690.
Find LCM of 747,407,305,990 with Prime Factorization
| 3 | 747, 407, 305, 990 |
| 3 | 249, 407, 305, 330 |
| 5 | 83, 407, 305, 110 |
| 11 | 83, 407, 61, 22 |
| 83, 37, 61, 2 |
Multiply the prime numbers at the bottom and the left side.
3 x 3 x 5 x 11 x 83 x 37 x 61 x 2 = 185457690
Therefore, the lowest common multiple of 747,407,305,990 is 185457690.
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.
747 x 407 x 305 x 990 = 91801556550
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.
747 : 1, 3, 9, 83, 249, 747
407 : 1, 11, 37, 407
305 : 1, 5, 61, 305
990 : 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 747,407,305,990, is 1.
Now, the common factors can be found like this.
747:3x 3x 83
407:11x 37
305:5x 61
990:2x 3x 3x 5x 11
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 3x 5x 11 = 495
Therefore, the value for common factors is 495.
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 = 91801556550/(1x495)
LCM = 91801556550/495
LCM = 185457690
Thus, we can understand that the LCM of 747,407,305,990 is 185457690.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 747, 407, 305, 990
1. What is the LCM of 747, 407, 305, 990?
Answer: LCM of 747, 407, 305, 990 is 185457690.
2. How to calculate the LCM of 747, 407, 305, 990?
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 747, 407, 305, 990.
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}.