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LCM of 428, 989, 989, 857

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


Find the LCM of 428, 989, 989, 857 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 428, 989, 989, 857. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 428,989,989,857

Given numbers are 428,989,989,857

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

The LCM of 428,989,989,857 is 362761244.

Find LCM of 428,989,989,857 with Prime Factorization


23 428, 989, 989, 857
43 428, 43, 43, 857
428, 1, 1, 857

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

23 x 43 x 428 x 1 x 1 x 857 = 362761244

Therefore, the lowest common multiple of 428,989,989,857 is 362761244.

LCM Formula to Find Lowest Common Multiple of 428,989,989,857

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.

428 x 989 x 989 x 857 = 358770870316

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.

428 : 1, 2, 4, 107, 214, 428

989 : 1, 23, 43, 989

989 : 1, 23, 43, 989

857 : 1, 857

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 428,989,989,857, is 1.

Now, the common factors can be found like this.

428:2x 2x 107

989:23x 43

989:23x 43

857:857

From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.

23x 43 = 989

Therefore, the value for common factors is 989.

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 = 358770870316/(1x989)

LCM = 358770870316/989

LCM = 362761244

Thus, we can understand that the LCM of 428,989,989,857 is 362761244.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 428, 989, 989, 857

1. What is the LCM of 428, 989, 989, 857?

Answer: LCM of 428, 989, 989, 857 is 362761244.

2. How to calculate the LCM of 428, 989, 989, 857?

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 428, 989, 989, 857.

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}.