LCM of 664, 781, 440, 286
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 664, 781, 440, 286 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 664, 781, 440, 286. So, keep reading to learn more.
Given numbers are 664,781,440,286
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 664,781,440,286 is 33707960.
Find LCM of 664,781,440,286 with Prime Factorization
| 2 | 664, 781, 440, 286 |
| 2 | 332, 781, 220, 143 |
| 2 | 166, 781, 110, 143 |
| 11 | 83, 781, 55, 143 |
| 83, 71, 5, 13 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 11 x 83 x 71 x 5 x 13 = 33707960
Therefore, the lowest common multiple of 664,781,440,286 is 33707960.
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.
664 x 781 x 440 x 286 = 65258610560
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.
664 : 1, 2, 4, 8, 83, 166, 332, 664
781 : 1, 11, 71, 781
440 : 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440
286 : 1, 2, 11, 13, 22, 26, 143, 286
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 664,781,440,286, is 1.
Now, the common factors can be found like this.
664:2x 2x 2x 83
781:11x 71
440:2x 2x 2x 5x 11
286:2x 11x 13
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 11x 11 = 1936
Therefore, the value for common factors is 1936.
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 = 65258610560/(1x1936)
LCM = 65258610560/1936
LCM = 33707960
Thus, we can understand that the LCM of 664,781,440,286 is 33707960.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 664, 781, 440, 286
1. What is the LCM of 664, 781, 440, 286?
Answer: LCM of 664, 781, 440, 286 is 33707960.
2. How to calculate the LCM of 664, 781, 440, 286?
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 664, 781, 440, 286.
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}.