Given numbers are 642,919,919,686

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

The LCM of 642,919,919,686 is 202369314.

Find LCM of 642,919,919,686 with Prime Factorization

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

2 x 919 x 321 x 1 x 1 x 343 = 202369314

Therefore, the lowest common multiple of 642,919,919,686 is 202369314.

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.

642 x 919 x 919 x 686 = 371954799132

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.

642 : 1, 2, 3, 6, 107, 214, 321, 642

919 : 1, 919

919 : 1, 919

686 : 1, 2, 7, 14, 49, 98, 343, 686

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 642,919,919,686, is 1.

Now, the common factors can be found like this.

642:2x 3x 107

919:919

919:919

686:2x 7x 7x 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 919 = 1838

Therefore, the value for common factors is 1838.

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 = 371954799132/(1x1838)

LCM = 371954799132/1838

LCM = 202369314

Thus, we can understand that the LCM of 642,919,919,686 is 202369314.

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

• LCM of 974, 157, 789, 627
• LCM of 882, 808, 778, 769
• LCM of 660, 505, 836, 142
• LCM of 759, 285, 222, 374
• LCM of 736, 801, 163, 469

1. What is the LCM of 642, 919, 919, 686?

Answer: LCM of 642, 919, 919, 686 is 202369314.

2. How to calculate the LCM of 642, 919, 919, 686?

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 642, 919, 919, 686.

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}.