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LCM of 668, 494, 128, 475

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


Find the LCM of 668, 494, 128, 475 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 668, 494, 128, 475. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 668,494,128,475

Given numbers are 668,494,128,475

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

The LCM of 668,494,128,475 is 131996800.

Find LCM of 668,494,128,475 with Prime Factorization


2 668, 494, 128, 475
2 334, 247, 64, 475
19 167, 247, 32, 475
167, 13, 32, 25

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

2 x 2 x 19 x 167 x 13 x 32 x 25 = 131996800

Therefore, the lowest common multiple of 668,494,128,475 is 131996800.

LCM Formula to Find Lowest Common Multiple of 668,494,128,475

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.

668 x 494 x 128 x 475 = 20063513600

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.

668 : 1, 2, 4, 167, 334, 668

494 : 1, 2, 13, 19, 26, 38, 247, 494

128 : 1, 2, 4, 8, 16, 32, 64, 128

475 : 1, 5, 19, 25, 95, 475

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 668,494,128,475, is 1.

Now, the common factors can be found like this.

668:2x 2x 167

494:2x 13x 19

128:2x 2x 2x 2x 2x 2x 2

475:5x 5x 19

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

2x 2x 2x 19 = 152

Therefore, the value for common factors is 152.

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 = 20063513600/(1x152)

LCM = 20063513600/152

LCM = 131996800

Thus, we can understand that the LCM of 668,494,128,475 is 131996800.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 668, 494, 128, 475

1. What is the LCM of 668, 494, 128, 475?

Answer: LCM of 668, 494, 128, 475 is 131996800.

2. How to calculate the LCM of 668, 494, 128, 475?

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 668, 494, 128, 475.

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}.