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LCM of 421, 128, 838, 697

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


Find the LCM of 421, 128, 838, 697 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 421, 128, 838, 697. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 421,128,838,697

Given numbers are 421,128,838,697

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

The LCM of 421,128,838,697 is 15737613184.

Find LCM of 421,128,838,697 with Prime Factorization


2 421, 128, 838, 697
421, 64, 419, 697

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

2 x 421 x 64 x 419 x 697 = 15737613184

Therefore, the lowest common multiple of 421,128,838,697 is 15737613184.

LCM Formula to Find Lowest Common Multiple of 421,128,838,697

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.

421 x 128 x 838 x 697 = 31475226368

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.

421 : 1, 421

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

838 : 1, 2, 419, 838

697 : 1, 17, 41, 697

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 421,128,838,697, is 1.

Now, the common factors can be found like this.

421:421

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

838:2x 419

697:17x 41

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

2 = 2

Therefore, the value for common factors is 2.

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 = 31475226368/(1x2)

LCM = 31475226368/2

LCM = 15737613184

Thus, we can understand that the LCM of 421,128,838,697 is 15737613184.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 421, 128, 838, 697

1. What is the LCM of 421, 128, 838, 697?

Answer: LCM of 421, 128, 838, 697 is 15737613184.

2. How to calculate the LCM of 421, 128, 838, 697?

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 421, 128, 838, 697.

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}.