LCM of 409, 490, 340, 763, 721
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 409, 490, 340, 763, 721 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 409, 490, 340, 763, 721. So, keep reading to learn more.
Given numbers are 409,490,340,763,721
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 409,490,340,763,721 is 76500104380.
Find LCM of 409,490,340,763,721 with Prime Factorization
| 2 | 409, 490, 340, 763, 721 |
| 5 | 409, 245, 170, 763, 721 |
| 7 | 409, 49, 34, 763, 721 |
| 409, 7, 34, 109, 103 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 7 x 409 x 7 x 34 x 109 x 103 = 76500104380
Therefore, the lowest common multiple of 409,490,340,763,721 is 76500104380.
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.
409 x 490 x 340 x 763 x 721 = 37485051146200
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.
409 : 1, 409
490 : 1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490
340 : 1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340
763 : 1, 7, 109, 763
721 : 1, 7, 103, 721
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 409,490,340,763,721, is 1.
Now, the common factors can be found like this.
409:409
490:2x 5x 7x 7
340:2x 2x 5x 17
763:7x 109
721:7x 103
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 5x 7x 7 = 490
Therefore, the value for common factors is 490.
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 = 37485051146200/(1x490)
LCM = 37485051146200/490
LCM = 76500104380
Thus, we can understand that the LCM of 409,490,340,763,721 is 76500104380.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 409, 490, 340, 763, 721
1. What is the LCM of 409, 490, 340, 763, 721?
Answer: LCM of 409, 490, 340, 763, 721 is 76500104380.
2. How to calculate the LCM of 409, 490, 340, 763, 721?
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 409, 490, 340, 763, 721.
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}.