LCM of 603, 780, 978, 785
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 603, 780, 978, 785 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 603, 780, 978, 785. So, keep reading to learn more.
Given numbers are 603,780,978,785
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 603,780,978,785 is 4012156980.
Find LCM of 603,780,978,785 with Prime Factorization
| 2 | 603, 780, 978, 785 |
| 3 | 603, 390, 489, 785 |
| 5 | 201, 130, 163, 785 |
| 201, 26, 163, 157 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 201 x 26 x 163 x 157 = 4012156980
Therefore, the lowest common multiple of 603,780,978,785 is 4012156980.
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.
603 x 780 x 978 x 785 = 361094128200
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.
603 : 1, 3, 9, 67, 201, 603
780 : 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780
978 : 1, 2, 3, 6, 163, 326, 489, 978
785 : 1, 5, 157, 785
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 603,780,978,785, is 1.
Now, the common factors can be found like this.
603:3x 3x 67
780:2x 2x 3x 5x 13
978:2x 3x 163
785:5x 157
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 3x 5 = 90
Therefore, the value for common factors is 90.
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 = 361094128200/(1x90)
LCM = 361094128200/90
LCM = 4012156980
Thus, we can understand that the LCM of 603,780,978,785 is 4012156980.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 603, 780, 978, 785
1. What is the LCM of 603, 780, 978, 785?
Answer: LCM of 603, 780, 978, 785 is 4012156980.
2. How to calculate the LCM of 603, 780, 978, 785?
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 603, 780, 978, 785.
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}.