Given numbers are 642,871,268,989

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

The LCM of 642,871,268,989 is 1106061996.

Find LCM of 642,871,268,989 with Prime Factorization

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

2 x 67 x 321 x 13 x 2 x 989 = 1106061996

Therefore, the lowest common multiple of 642,871,268,989 is 1106061996.

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 871 x 268 x 989 = 148212307464

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

871 : 1, 13, 67, 871

268 : 1, 2, 4, 67, 134, 268

989 : 1, 23, 43, 989

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 642,871,268,989, is 1.

Now, the common factors can be found like this.

642:2x 3x 107

871:13x 67

268:2x 2x 67

989:23x 43

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

2x 67 = 134

Therefore, the value for common factors is 134.

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 = 148212307464/(1x134)

LCM = 148212307464/134

LCM = 1106061996

Thus, we can understand that the LCM of 642,871,268,989 is 1106061996.

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

• LCM of 673, 848, 199, 223
• LCM of 988, 265, 182, 532
• LCM of 409, 450, 996, 308
• LCM of 493, 525, 910, 769
• LCM of 515, 627, 429, 483

1. What is the LCM of 642, 871, 268, 989?

Answer: LCM of 642, 871, 268, 989 is 1106061996.

2. How to calculate the LCM of 642, 871, 268, 989?

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, 871, 268, 989.

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}.