LCM of 251, 721, 535, 990
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 251, 721, 535, 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 251, 721, 535, 990. So, keep reading to learn more.
Given numbers are 251,721,535,990
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 251,721,535,990 is 19170258030.
Find LCM of 251,721,535,990 with Prime Factorization
| 5 | 251, 721, 535, 990 |
| 251, 721, 107, 198 |
Multiply the prime numbers at the bottom and the left side.
5 x 251 x 721 x 107 x 198 = 19170258030
Therefore, the lowest common multiple of 251,721,535,990 is 19170258030.
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.
251 x 721 x 535 x 990 = 95851290150
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.
251 : 1, 251
721 : 1, 7, 103, 721
535 : 1, 5, 107, 535
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 251,721,535,990, is 1.
Now, the common factors can be found like this.
251:251
721:7x 103
535:5x 107
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.
5 = 5
Therefore, the value for common factors is 5.
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 = 95851290150/(1x5)
LCM = 95851290150/5
LCM = 19170258030
Thus, we can understand that the LCM of 251,721,535,990 is 19170258030.
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FAQs on LCM of 251, 721, 535, 990
1. What is the LCM of 251, 721, 535, 990?
Answer: LCM of 251, 721, 535, 990 is 19170258030.
2. How to calculate the LCM of 251, 721, 535, 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 251, 721, 535, 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}.