LCM of 223, 378, 840
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 223, 378, 840 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 223, 378, 840. So, keep reading to learn more.
Given numbers are 223,378,840
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 223,378,840 is 1685880.
Find LCM of 223,378,840 with Prime Factorization
| 2 | 223, 378, 840 |
| 3 | 223, 189, 420 |
| 7 | 223, 63, 140 |
| 223, 9, 20 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 7 x 223 x 9 x 20 = 1685880
Therefore, the lowest common multiple of 223,378,840 is 1685880.
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.
223 x 378 x 840 = 70806960
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.
223 : 1, 223
378 : 1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378
840 : 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 223,378,840, is 1.
Now, the common factors can be found like this.
223:223
378:2x 3x 3x 3x 7
840:2x 2x 2x 3x 5x 7
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 7 = 42
Therefore, the value for common factors is 42.
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 = 70806960/(1x42)
LCM = 70806960/42
LCM = 1685880
Thus, we can understand that the LCM of 223,378,840 is 1685880.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 223, 378, 840
1. What is the LCM of 223, 378, 840?
Answer: LCM of 223, 378, 840 is 1685880.
2. How to calculate the LCM of 223, 378, 840?
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 223, 378, 840.
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}.