LCM of 644, 672, 824, 983
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 644, 672, 824, 983 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 644, 672, 824, 983. So, keep reading to learn more.
Given numbers are 644,672,824,983
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 644,672,824,983 is 1564904544.
Find LCM of 644,672,824,983 with Prime Factorization
| 2 | 644, 672, 824, 983 |
| 2 | 322, 336, 412, 983 |
| 2 | 161, 168, 206, 983 |
| 7 | 161, 84, 103, 983 |
| 23, 12, 103, 983 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 7 x 23 x 12 x 103 x 983 = 1564904544
Therefore, the lowest common multiple of 644,672,824,983 is 1564904544.
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.
644 x 672 x 824 x 983 = 350538617856
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.
644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
672 : 1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672
824 : 1, 2, 4, 8, 103, 206, 412, 824
983 : 1, 983
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 644,672,824,983, is 1.
Now, the common factors can be found like this.
644:2x 2x 7x 23
672:2x 2x 2x 2x 2x 3x 7
824:2x 2x 2x 103
983:983
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 7 = 224
Therefore, the value for common factors is 224.
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 = 350538617856/(1x224)
LCM = 350538617856/224
LCM = 1564904544
Thus, we can understand that the LCM of 644,672,824,983 is 1564904544.
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FAQs on LCM of 644, 672, 824, 983
1. What is the LCM of 644, 672, 824, 983?
Answer: LCM of 644, 672, 824, 983 is 1564904544.
2. How to calculate the LCM of 644, 672, 824, 983?
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 644, 672, 824, 983.
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}.