LCM of 646, 140, 101, 909
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 646, 140, 101, 909 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 646, 140, 101, 909. So, keep reading to learn more.
Given numbers are 646,140,101,909
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 646,140,101,909 is 41104980.
Find LCM of 646,140,101,909 with Prime Factorization
| 2 | 646, 140, 101, 909 |
| 101 | 323, 70, 101, 909 |
| 323, 70, 1, 9 |
Multiply the prime numbers at the bottom and the left side.
2 x 101 x 323 x 70 x 1 x 9 = 41104980
Therefore, the lowest common multiple of 646,140,101,909 is 41104980.
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.
646 x 140 x 101 x 909 = 8303205960
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.
646 : 1, 2, 17, 19, 34, 38, 323, 646
140 : 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140
101 : 1, 101
909 : 1, 3, 9, 101, 303, 909
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 646,140,101,909, is 1.
Now, the common factors can be found like this.
646:2x 17x 19
140:2x 2x 5x 7
101:101
909:3x 3x 101
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 101 = 202
Therefore, the value for common factors is 202.
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 = 8303205960/(1x202)
LCM = 8303205960/202
LCM = 41104980
Thus, we can understand that the LCM of 646,140,101,909 is 41104980.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 646, 140, 101, 909
1. What is the LCM of 646, 140, 101, 909?
Answer: LCM of 646, 140, 101, 909 is 41104980.
2. How to calculate the LCM of 646, 140, 101, 909?
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 646, 140, 101, 909.
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}.