Given numbers are 128,642,163,737,121

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

The LCM of 128,642,163,737,121 is 54295367808.

Find LCM of 128,642,163,737,121 with Prime Factorization

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

2 x 11 x 64 x 321 x 163 x 67 x 11 = 54295367808

Therefore, the lowest common multiple of 128,642,163,737,121 is 54295367808.

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.

128 x 642 x 163 x 737 x 121 = 1194498091776

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.

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

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

163 : 1, 163

737 : 1, 11, 67, 737

121 : 1, 11, 121

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 128,642,163,737,121, is 1.

Now, the common factors can be found like this.

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

642:2x 3x 107

163:163

737:11x 67

121:11x 11

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

2x 11 = 22

Therefore, the value for common factors is 22.

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 = 1194498091776/(1x22)

LCM = 1194498091776/22

LCM = 54295367808

Thus, we can understand that the LCM of 128,642,163,737,121 is 54295367808.

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

• LCM of 291, 139, 942, 435, 180
• LCM of 133, 276, 507, 441, 387
• LCM of 817, 539, 604, 169, 533
• LCM of 989, 243, 139, 771, 618
• LCM of 613, 605, 572, 462, 199

1. What is the LCM of 128, 642, 163, 737, 121?

Answer: LCM of 128, 642, 163, 737, 121 is 54295367808.

2. How to calculate the LCM of 128, 642, 163, 737, 121?

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 128, 642, 163, 737, 121.

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}.