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LCM of 170, 605, 990, 974

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


Find the LCM of 170, 605, 990, 974 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 170, 605, 990, 974. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 170,605,990,974

Given numbers are 170,605,990,974

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

The LCM of 170,605,990,974 is 90158310.

Find LCM of 170,605,990,974 with Prime Factorization


2 170, 605, 990, 974
5 85, 605, 495, 487
11 17, 121, 99, 487
17, 11, 9, 487

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

2 x 5 x 11 x 17 x 11 x 9 x 487 = 90158310

Therefore, the lowest common multiple of 170,605,990,974 is 90158310.

LCM Formula to Find Lowest Common Multiple of 170,605,990,974

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.

170 x 605 x 990 x 974 = 99174141000

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.

170 : 1, 2, 5, 10, 17, 34, 85, 170

605 : 1, 5, 11, 55, 121, 605

990 : 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990

974 : 1, 2, 487, 974

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 170,605,990,974, is 1.

Now, the common factors can be found like this.

170:2x 5x 17

605:5x 11x 11

990:2x 3x 3x 5x 11

974:2x 487

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 5x 5x 11 = 1100

Therefore, the value for common factors is 1100.

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 = 99174141000/(1x1100)

LCM = 99174141000/1100

LCM = 90158310

Thus, we can understand that the LCM of 170,605,990,974 is 90158310.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 170, 605, 990, 974

1. What is the LCM of 170, 605, 990, 974?

Answer: LCM of 170, 605, 990, 974 is 90158310.

2. How to calculate the LCM of 170, 605, 990, 974?

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 170, 605, 990, 974.

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}.