LCM of 644, 896, 494, 988
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 644, 896, 494, 988 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, 896, 494, 988. So, keep reading to learn more.
Given numbers are 644,896,494,988
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 644,896,494,988 is 5090176.
Find LCM of 644,896,494,988 with Prime Factorization
| 2 | 644, 896, 494, 988 |
| 2 | 322, 448, 247, 494 |
| 7 | 161, 224, 247, 247 |
| 13 | 23, 32, 247, 247 |
| 19 | 23, 32, 19, 19 |
| 23, 32, 1, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 7 x 13 x 19 x 23 x 32 x 1 x 1 = 5090176
Therefore, the lowest common multiple of 644,896,494,988 is 5090176.
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 896 x 494 x 988 = 281629257728
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
896 : 1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 448, 896
494 : 1, 2, 13, 19, 26, 38, 247, 494
988 : 1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 644,896,494,988, is 2.
Now, the common factors can be found like this.
644:2x 2x 7x 23
896:2x 2x 2x 2x 2x 2x 2x 7
494:2x 13x 19
988:2x 2x 13x 19
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 7x 13x 19 = 27664
Therefore, the value for common factors is 27664.
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 = 281629257728/(2x27664)
LCM = 281629257728/55328
LCM = 5090176
Thus, we can understand that the LCM of 644,896,494,988 is 5090176.
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FAQs on LCM of 644, 896, 494, 988
1. What is the LCM of 644, 896, 494, 988?
Answer: LCM of 644, 896, 494, 988 is 5090176.
2. How to calculate the LCM of 644, 896, 494, 988?
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, 896, 494, 988.
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}.