LCM of 738, 781, 451, 978
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 738, 781, 451, 978 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 738, 781, 451, 978. So, keep reading to learn more.
Given numbers are 738,781,451,978
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 738,781,451,978 is 93949614.
Find LCM of 738,781,451,978 with Prime Factorization
| 2 | 738, 781, 451, 978 |
| 3 | 369, 781, 451, 489 |
| 11 | 123, 781, 451, 163 |
| 41 | 123, 71, 41, 163 |
| 3, 71, 1, 163 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 11 x 41 x 3 x 71 x 1 x 163 = 93949614
Therefore, the lowest common multiple of 738,781,451,978 is 93949614.
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.
738 x 781 x 451 x 978 = 254227655484
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.
738 : 1, 2, 3, 6, 9, 18, 41, 82, 123, 246, 369, 738
781 : 1, 11, 71, 781
451 : 1, 11, 41, 451
978 : 1, 2, 3, 6, 163, 326, 489, 978
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 738,781,451,978, is 1.
Now, the common factors can be found like this.
738:2x 3x 3x 41
781:11x 71
451:11x 41
978:2x 3x 163
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 11x 41 = 2706
Therefore, the value for common factors is 2706.
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 = 254227655484/(1x2706)
LCM = 254227655484/2706
LCM = 93949614
Thus, we can understand that the LCM of 738,781,451,978 is 93949614.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 738, 781, 451, 978
1. What is the LCM of 738, 781, 451, 978?
Answer: LCM of 738, 781, 451, 978 is 93949614.
2. How to calculate the LCM of 738, 781, 451, 978?
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 738, 781, 451, 978.
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}.