LCM of 428, 646, 153, 781, 666
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 428, 646, 153, 781, 666 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 428, 646, 153, 781, 666. So, keep reading to learn more.
Given numbers are 428,646,153,781,666
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 428,646,153,781,666 is 35953531812.
Find LCM of 428,646,153,781,666 with Prime Factorization
| 2 | 428, 646, 153, 781, 666 |
| 3 | 214, 323, 153, 781, 333 |
| 3 | 214, 323, 51, 781, 111 |
| 17 | 214, 323, 17, 781, 37 |
| 214, 19, 1, 781, 37 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 17 x 214 x 19 x 1 x 781 x 37 = 35953531812
Therefore, the lowest common multiple of 428,646,153,781,666 is 35953531812.
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.
428 x 646 x 153 x 781 x 666 = 22003561468944
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.
428 : 1, 2, 4, 107, 214, 428
646 : 1, 2, 17, 19, 34, 38, 323, 646
153 : 1, 3, 9, 17, 51, 153
781 : 1, 11, 71, 781
666 : 1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 428,646,153,781,666, is 1.
Now, the common factors can be found like this.
428:2x 2x 107
646:2x 17x 19
153:3x 3x 17
781:11x 71
666:2x 3x 3x 37
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 17 = 612
Therefore, the value for common factors is 612.
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 = 22003561468944/(1x612)
LCM = 22003561468944/612
LCM = 35953531812
Thus, we can understand that the LCM of 428,646,153,781,666 is 35953531812.
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FAQs on LCM of 428, 646, 153, 781, 666
1. What is the LCM of 428, 646, 153, 781, 666?
Answer: LCM of 428, 646, 153, 781, 666 is 35953531812.
2. How to calculate the LCM of 428, 646, 153, 781, 666?
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 428, 646, 153, 781, 666.
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}.