LCM of 152, 861, 209, 642
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 152, 861, 209, 642 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 152, 861, 209, 642. So, keep reading to learn more.
Given numbers are 152,861,209,642
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 152,861,209,642 is 154036344.
Find LCM of 152,861,209,642 with Prime Factorization
| 2 | 152, 861, 209, 642 |
| 3 | 76, 861, 209, 321 |
| 19 | 76, 287, 209, 107 |
| 4, 287, 11, 107 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 19 x 4 x 287 x 11 x 107 = 154036344
Therefore, the lowest common multiple of 152,861,209,642 is 154036344.
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.
152 x 861 x 209 x 642 = 17560143216
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.
152 : 1, 2, 4, 8, 19, 38, 76, 152
861 : 1, 3, 7, 21, 41, 123, 287, 861
209 : 1, 11, 19, 209
642 : 1, 2, 3, 6, 107, 214, 321, 642
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 152,861,209,642, is 1.
Now, the common factors can be found like this.
152:2x 2x 2x 19
861:3x 7x 41
209:11x 19
642:2x 3x 107
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 19 = 114
Therefore, the value for common factors is 114.
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 = 17560143216/(1x114)
LCM = 17560143216/114
LCM = 154036344
Thus, we can understand that the LCM of 152,861,209,642 is 154036344.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 152, 861, 209, 642
1. What is the LCM of 152, 861, 209, 642?
Answer: LCM of 152, 861, 209, 642 is 154036344.
2. How to calculate the LCM of 152, 861, 209, 642?
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 152, 861, 209, 642.
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}.