LCM of 14, 70, 18, 84, 816
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 14, 70, 18, 84, 816 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 14, 70, 18, 84, 816. So, keep reading to learn more.
Given numbers are 14,70,18,84,816
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 14,70,18,84,816 is 85680.
Find LCM of 14,70,18,84,816 with Prime Factorization
| 2 | 14, 70, 18, 84, 816 |
| 2 | 7, 35, 9, 42, 408 |
| 3 | 7, 35, 9, 21, 204 |
| 7 | 7, 35, 3, 7, 68 |
| 1, 5, 3, 1, 68 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 7 x 1 x 5 x 3 x 1 x 68 = 85680
Therefore, the lowest common multiple of 14,70,18,84,816 is 85680.
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.
14 x 70 x 18 x 84 x 816 = 1209116160
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.
14 : 1, 2, 7, 14
70 : 1, 2, 5, 7, 10, 14, 35, 70
18 : 1, 2, 3, 6, 9, 18
84 : 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
816 : 1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 102, 136, 204, 272, 408, 816
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 14,70,18,84,816, is 2.
Now, the common factors can be found like this.
14:2x 7
70:2x 5x 7
18:2x 3x 3
84:2x 2x 3x 7
816:2x 2x 2x 2x 3x 17
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 3x 3x 7x 7 = 7056
Therefore, the value for common factors is 7056.
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 = 1209116160/(2x7056)
LCM = 1209116160/14112
LCM = 85680
Thus, we can understand that the LCM of 14,70,18,84,816 is 85680.
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FAQs on LCM of 14, 70, 18, 84, 816
1. What is the LCM of 14, 70, 18, 84, 816?
Answer: LCM of 14, 70, 18, 84, 816 is 85680.
2. How to calculate the LCM of 14, 70, 18, 84, 816?
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 14, 70, 18, 84, 816.
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}.