LCM of 849, 989, 842, 690, 438
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 849, 989, 842, 690, 438 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 849, 989, 842, 690, 438. So, keep reading to learn more.
Given numbers are 849,989,842,690,438
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 849,989,842,690,438 is 258053015130.
Find LCM of 849,989,842,690,438 with Prime Factorization
| 2 | 849, 989, 842, 690, 438 |
| 3 | 849, 989, 421, 345, 219 |
| 23 | 283, 989, 421, 115, 73 |
| 283, 43, 421, 5, 73 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 23 x 283 x 43 x 421 x 5 x 73 = 258053015130
Therefore, the lowest common multiple of 849,989,842,690,438 is 258053015130.
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.
849 x 989 x 842 x 690 x 438 = 213667896527640
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.
849 : 1, 3, 283, 849
989 : 1, 23, 43, 989
842 : 1, 2, 421, 842
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
438 : 1, 2, 3, 6, 73, 146, 219, 438
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 849,989,842,690,438, is 1.
Now, the common factors can be found like this.
849:3x 283
989:23x 43
842:2x 421
690:2x 3x 5x 23
438:2x 3x 73
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 3x 3x 23 = 828
Therefore, the value for common factors is 828.
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 = 213667896527640/(1x828)
LCM = 213667896527640/828
LCM = 258053015130
Thus, we can understand that the LCM of 849,989,842,690,438 is 258053015130.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 849, 989, 842, 690, 438
1. What is the LCM of 849, 989, 842, 690, 438?
Answer: LCM of 849, 989, 842, 690, 438 is 258053015130.
2. How to calculate the LCM of 849, 989, 842, 690, 438?
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 849, 989, 842, 690, 438.
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}.