LCM of 3 Numbers Calculator LCM of 4 Numbers Calculator LCM of 5 Numbers Calculator LCD Calculator How to find LCM LCM and HCF Questions Least Common Denominator Calculator Greatest Common Divisor Calculator HCF Calculator HCF of 3 Numbers Calculator HCF of 4 Numbers Calculator GCD Calculator Greatest Common Factor Calculator Least Common Multiple Calculator Common Factors Calculator

LCM of 494, 342, 840

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


Find the LCM of 494, 342, 840 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 494, 342, 840. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 494,342,840

Given numbers are 494,342,840

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

The LCM of 494,342,840 is 622440.

Find LCM of 494,342,840 with Prime Factorization


2 494, 342, 840
3 247, 171, 420
19 247, 57, 140
13, 3, 140

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

2 x 3 x 19 x 13 x 3 x 140 = 622440

Therefore, the lowest common multiple of 494,342,840 is 622440.

LCM Formula to Find Lowest Common Multiple of 494,342,840

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.

494 x 342 x 840 = 141916320

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.

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

342 : 1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342

840 : 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840

2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 494,342,840, is 2.

Now, the common factors can be found like this.

494:2x 13x 19

342:2x 3x 3x 19

840:2x 2x 2x 3x 5x 7

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 19 = 114

Therefore, the value for common factors is 114.

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 = 141916320/(2x114)

LCM = 141916320/228

LCM = 622440

Thus, we can understand that the LCM of 494,342,840 is 622440.

LCM of two or more Numbers Calculation Examples

Here are some samples of LCM of two or more Numbers calculations.

FAQs on LCM of 494, 342, 840

1. What is the LCM of 494, 342, 840?

Answer: LCM of 494, 342, 840 is 622440.

2. How to calculate the LCM of 494, 342, 840?

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 494, 342, 840.

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}.