LCM of 255, 538, 978, 221
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 255, 538, 978, 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 255, 538, 978, 221. So, keep reading to learn more.
Given numbers are 255,538,978,221
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 255,538,978,221 is 290705610.
Find LCM of 255,538,978,221 with Prime Factorization
| 2 | 255, 538, 978, 221 |
| 3 | 255, 269, 489, 221 |
| 17 | 85, 269, 163, 221 |
| 5, 269, 163, 13 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 17 x 5 x 269 x 163 x 13 = 290705610
Therefore, the lowest common multiple of 255,538,978,221 is 290705610.
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.
255 x 538 x 978 x 221 = 29651972220
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.
255 : 1, 3, 5, 15, 17, 51, 85, 255
538 : 1, 2, 269, 538
978 : 1, 2, 3, 6, 163, 326, 489, 978
221 : 1, 13, 17, 221
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 255,538,978,221, is 1.
Now, the common factors can be found like this.
255:3x 5x 17
538:2x 269
978:2x 3x 163
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.
2x 3x 17 = 102
Therefore, the value for common factors is 102.
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 = 29651972220/(1x102)
LCM = 29651972220/102
LCM = 290705610
Thus, we can understand that the LCM of 255,538,978,221 is 290705610.
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FAQs on LCM of 255, 538, 978, 221
1. What is the LCM of 255, 538, 978, 221?
Answer: LCM of 255, 538, 978, 221 is 290705610.
2. How to calculate the LCM of 255, 538, 978, 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 255, 538, 978, 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}.