LCM of 978, 742, 423, 286
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 978, 742, 423, 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 978, 742, 423, 286. So, keep reading to learn more.
Given numbers are 978,742,423,286
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 978,742,423,286 is 7315902594.
Find LCM of 978,742,423,286 with Prime Factorization
| 2 | 978, 742, 423, 286 |
| 3 | 489, 371, 423, 143 |
| 163, 371, 141, 143 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 163 x 371 x 141 x 143 = 7315902594
Therefore, the lowest common multiple of 978,742,423,286 is 7315902594.
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.
978 x 742 x 423 x 286 = 87790831128
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.
978 : 1, 2, 3, 6, 163, 326, 489, 978
742 : 1, 2, 7, 14, 53, 106, 371, 742
423 : 1, 3, 9, 47, 141, 423
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 978,742,423,286, is 1.
Now, the common factors can be found like this.
978:2x 3x 163
742:2x 7x 53
423:3x 3x 47
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 3 = 12
Therefore, the value for common factors is 12.
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 = 87790831128/(1x12)
LCM = 87790831128/12
LCM = 7315902594
Thus, we can understand that the LCM of 978,742,423,286 is 7315902594.
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FAQs on LCM of 978, 742, 423, 286
1. What is the LCM of 978, 742, 423, 286?
Answer: LCM of 978, 742, 423, 286 is 7315902594.
2. How to calculate the LCM of 978, 742, 423, 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 978, 742, 423, 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}.