LCM of 155, 147, 280, 903
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 155, 147, 280, 903 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 155, 147, 280, 903. So, keep reading to learn more.
Given numbers are 155,147,280,903
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 155,147,280,903 is 7838040.
Find LCM of 155,147,280,903 with Prime Factorization
| 3 | 155, 147, 280, 903 |
| 5 | 155, 49, 280, 301 |
| 7 | 31, 49, 56, 301 |
| 31, 7, 8, 43 |
Multiply the prime numbers at the bottom and the left side.
3 x 5 x 7 x 31 x 7 x 8 x 43 = 7838040
Therefore, the lowest common multiple of 155,147,280,903 is 7838040.
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.
155 x 147 x 280 x 903 = 5760959400
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.
155 : 1, 5, 31, 155
147 : 1, 3, 7, 21, 49, 147
280 : 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280
903 : 1, 3, 7, 21, 43, 129, 301, 903
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 155,147,280,903, is 1.
Now, the common factors can be found like this.
155:5x 31
147:3x 7x 7
280:2x 2x 2x 5x 7
903:3x 7x 43
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 5x 7x 7 = 735
Therefore, the value for common factors is 735.
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 = 5760959400/(1x735)
LCM = 5760959400/735
LCM = 7838040
Thus, we can understand that the LCM of 155,147,280,903 is 7838040.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 155, 147, 280, 903
1. What is the LCM of 155, 147, 280, 903?
Answer: LCM of 155, 147, 280, 903 is 7838040.
2. How to calculate the LCM of 155, 147, 280, 903?
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 155, 147, 280, 903.
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}.