LCM of 660, 905, 748, 553
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 660, 905, 748, 553 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 660, 905, 748, 553. So, keep reading to learn more.
Given numbers are 660,905,748,553
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 660,905,748,553 is 1123043460.
Find LCM of 660,905,748,553 with Prime Factorization
| 2 | 660, 905, 748, 553 |
| 2 | 330, 905, 374, 553 |
| 5 | 165, 905, 187, 553 |
| 11 | 33, 181, 187, 553 |
| 3, 181, 17, 553 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 11 x 3 x 181 x 17 x 553 = 1123043460
Therefore, the lowest common multiple of 660,905,748,553 is 1123043460.
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.
660 x 905 x 748 x 553 = 247069561200
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.
660 : 1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660
905 : 1, 5, 181, 905
748 : 1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 748
553 : 1, 7, 79, 553
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 660,905,748,553, is 1.
Now, the common factors can be found like this.
660:2x 2x 3x 5x 11
905:5x 181
748:2x 2x 11x 17
553:7x 79
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 2x 5x 11 = 220
Therefore, the value for common factors is 220.
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 = 247069561200/(1x220)
LCM = 247069561200/220
LCM = 1123043460
Thus, we can understand that the LCM of 660,905,748,553 is 1123043460.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 660, 905, 748, 553
1. What is the LCM of 660, 905, 748, 553?
Answer: LCM of 660, 905, 748, 553 is 1123043460.
2. How to calculate the LCM of 660, 905, 748, 553?
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 660, 905, 748, 553.
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}.