LCM of 648, 664, 661, 399, 756
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 648, 664, 661, 399, 756 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 648, 664, 661, 399, 756. So, keep reading to learn more.
Given numbers are 648,664,661,399,756
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 648,664,661,399,756 is 4728312792.
Find LCM of 648,664,661,399,756 with Prime Factorization
| 2 | 648, 664, 661, 399, 756 |
| 2 | 324, 332, 661, 399, 378 |
| 2 | 162, 166, 661, 399, 189 |
| 3 | 81, 83, 661, 399, 189 |
| 3 | 27, 83, 661, 133, 63 |
| 3 | 9, 83, 661, 133, 21 |
| 7 | 3, 83, 661, 133, 7 |
| 3, 83, 661, 19, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 3 x 3 x 3 x 7 x 3 x 83 x 661 x 19 x 1 = 4728312792
Therefore, the lowest common multiple of 648,664,661,399,756 is 4728312792.
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.
648 x 664 x 661 x 399 x 756 = 85790507298048
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.
648 : 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648
664 : 1, 2, 4, 8, 83, 166, 332, 664
661 : 1, 661
399 : 1, 3, 7, 19, 21, 57, 133, 399
756 : 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 648,664,661,399,756, is 1.
Now, the common factors can be found like this.
648:2x 2x 2x 3x 3x 3x 3
664:2x 2x 2x 83
661:661
399:3x 7x 19
756:2x 2x 3x 3x 3x 7
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 2x 2x 2x 3x 3x 3x 3x 7 = 18144
Therefore, the value for common factors is 18144.
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 = 85790507298048/(1x18144)
LCM = 85790507298048/18144
LCM = 4728312792
Thus, we can understand that the LCM of 648,664,661,399,756 is 4728312792.
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FAQs on LCM of 648, 664, 661, 399, 756
1. What is the LCM of 648, 664, 661, 399, 756?
Answer: LCM of 648, 664, 661, 399, 756 is 4728312792.
2. How to calculate the LCM of 648, 664, 661, 399, 756?
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 648, 664, 661, 399, 756.
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}.