LCM of 221, 507, 399, 357
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 221, 507, 399, 357 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 221, 507, 399, 357. So, keep reading to learn more.
Given numbers are 221,507,399,357
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 221,507,399,357 is 1146327.
Find LCM of 221,507,399,357 with Prime Factorization
| 3 | 221, 507, 399, 357 |
| 7 | 221, 169, 133, 119 |
| 13 | 221, 169, 19, 17 |
| 17 | 17, 13, 19, 17 |
| 1, 13, 19, 1 |
Multiply the prime numbers at the bottom and the left side.
3 x 7 x 13 x 17 x 1 x 13 x 19 x 1 = 1146327
Therefore, the lowest common multiple of 221,507,399,357 is 1146327.
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.
221 x 507 x 399 x 357 = 15960310821
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.
221 : 1, 13, 17, 221
507 : 1, 3, 13, 39, 169, 507
399 : 1, 3, 7, 19, 21, 57, 133, 399
357 : 1, 3, 7, 17, 21, 51, 119, 357
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 221,507,399,357, is 1.
Now, the common factors can be found like this.
221:13x 17
507:3x 13x 13
399:3x 7x 19
357:3x 7x 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 3x 7x 13x 17 = 13923
Therefore, the value for common factors is 13923.
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 = 15960310821/(1x13923)
LCM = 15960310821/13923
LCM = 1146327
Thus, we can understand that the LCM of 221,507,399,357 is 1146327.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 221, 507, 399, 357
1. What is the LCM of 221, 507, 399, 357?
Answer: LCM of 221, 507, 399, 357 is 1146327.
2. How to calculate the LCM of 221, 507, 399, 357?
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 221, 507, 399, 357.
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}.