LCM of 507, 791, 390, 221
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 507, 791, 390, 221 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 507, 791, 390, 221. So, keep reading to learn more.
Given numbers are 507,791,390,221
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 507,791,390,221 is 68176290.
Find LCM of 507,791,390,221 with Prime Factorization
| 3 | 507, 791, 390, 221 |
| 13 | 169, 791, 130, 221 |
| 13, 791, 10, 17 |
Multiply the prime numbers at the bottom and the left side.
3 x 13 x 13 x 791 x 10 x 17 = 68176290
Therefore, the lowest common multiple of 507,791,390,221 is 68176290.
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.
507 x 791 x 390 x 221 = 34565379030
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.
507 : 1, 3, 13, 39, 169, 507
791 : 1, 7, 113, 791
390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
221 : 1, 13, 17, 221
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 507,791,390,221, is 1.
Now, the common factors can be found like this.
507:3x 13x 13
791:7x 113
390:2x 3x 5x 13
221:13x 17
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 13x 13 = 507
Therefore, the value for common factors is 507.
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 = 34565379030/(1x507)
LCM = 34565379030/507
LCM = 68176290
Thus, we can understand that the LCM of 507,791,390,221 is 68176290.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 507, 791, 390, 221
1. What is the LCM of 507, 791, 390, 221?
Answer: LCM of 507, 791, 390, 221 is 68176290.
2. How to calculate the LCM of 507, 791, 390, 221?
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 507, 791, 390, 221.
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}.