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LCM of 285, 455, 749, 789

Created By : Jatin Gogia
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023


Find the LCM of 285, 455, 749, 789 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 285, 455, 749, 789. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 285,455,749,789

Given numbers are 285,455,749,789

The least common multiple of numbers can be find using the prime factorization method or LCM formula.

The LCM of 285,455,749,789 is 729836835.

Find LCM of 285,455,749,789 with Prime Factorization


3 285, 455, 749, 789
5 95, 455, 749, 263
7 19, 91, 749, 263
19, 13, 107, 263

Multiply the prime numbers at the bottom and the left side.

3 x 5 x 7 x 19 x 13 x 107 x 263 = 729836835

Therefore, the lowest common multiple of 285,455,749,789 is 729836835.

LCM Formula to Find Lowest Common Multiple of 285,455,749,789

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.

285 x 455 x 749 x 789 = 76632867675

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.

285 : 1, 3, 5, 15, 19, 57, 95, 285

455 : 1, 5, 7, 13, 35, 65, 91, 455

749 : 1, 7, 107, 749

789 : 1, 3, 263, 789

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 285,455,749,789, is 1.

Now, the common factors can be found like this.

285:3x 5x 19

455:5x 7x 13

749:7x 107

789:3x 263

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 7 = 105

Therefore, the value for common factors is 105.

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 = 76632867675/(1x105)

LCM = 76632867675/105

LCM = 729836835

Thus, we can understand that the LCM of 285,455,749,789 is 729836835.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 285, 455, 749, 789

1. What is the LCM of 285, 455, 749, 789?

Answer: LCM of 285, 455, 749, 789 is 729836835.

2. How to calculate the LCM of 285, 455, 749, 789?

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 285, 455, 749, 789.

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}.