LCM of 961, 990, 403, 721, 707
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 961, 990, 403, 721, 707 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 961, 990, 403, 721, 707. So, keep reading to learn more.
Given numbers are 961,990,403,721,707
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 961,990,403,721,707 is 900655225470.
Find LCM of 961,990,403,721,707 with Prime Factorization
| 7 | 961, 990, 403, 721, 707 |
| 31 | 961, 990, 403, 103, 101 |
| 31, 990, 13, 103, 101 |
Multiply the prime numbers at the bottom and the left side.
7 x 31 x 31 x 990 x 13 x 103 x 101 = 900655225470
Therefore, the lowest common multiple of 961,990,403,721,707 is 900655225470.
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.
961 x 990 x 403 x 721 x 707 = 195442183926990
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.
961 : 1, 31, 961
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
403 : 1, 13, 31, 403
721 : 1, 7, 103, 721
707 : 1, 7, 101, 707
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 961,990,403,721,707, is 1.
Now, the common factors can be found like this.
961:31x 31
990:2x 3x 3x 5x 11
403:13x 31
721:7x 103
707:7x 101
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
7x 31 = 217
Therefore, the value for common factors is 217.
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 = 195442183926990/(1x217)
LCM = 195442183926990/217
LCM = 900655225470
Thus, we can understand that the LCM of 961,990,403,721,707 is 900655225470.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 961, 990, 403, 721, 707
1. What is the LCM of 961, 990, 403, 721, 707?
Answer: LCM of 961, 990, 403, 721, 707 is 900655225470.
2. How to calculate the LCM of 961, 990, 403, 721, 707?
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 961, 990, 403, 721, 707.
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}.