LCM of 572, 840, 138, 644
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 572, 840, 138, 644 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 572, 840, 138, 644. So, keep reading to learn more.
Given numbers are 572,840,138,644
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 572,840,138,644 is 2762760.
Find LCM of 572,840,138,644 with Prime Factorization
| 2 | 572, 840, 138, 644 |
| 2 | 286, 420, 69, 322 |
| 3 | 143, 210, 69, 161 |
| 7 | 143, 70, 23, 161 |
| 23 | 143, 10, 23, 23 |
| 143, 10, 1, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 7 x 23 x 143 x 10 x 1 x 1 = 2762760
Therefore, the lowest common multiple of 572,840,138,644 is 2762760.
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.
572 x 840 x 138 x 644 = 42701218560
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.
572 : 1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572
840 : 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840
138 : 1, 2, 3, 6, 23, 46, 69, 138
644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 572,840,138,644, is 2.
Now, the common factors can be found like this.
572:2x 2x 11x 13
840:2x 2x 2x 3x 5x 7
138:2x 3x 23
644:2x 2x 7x 23
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 3x 7x 23 = 7728
Therefore, the value for common factors is 7728.
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 = 42701218560/(2x7728)
LCM = 42701218560/15456
LCM = 2762760
Thus, we can understand that the LCM of 572,840,138,644 is 2762760.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 572, 840, 138, 644
1. What is the LCM of 572, 840, 138, 644?
Answer: LCM of 572, 840, 138, 644 is 2762760.
2. How to calculate the LCM of 572, 840, 138, 644?
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 572, 840, 138, 644.
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}.