Given numbers are 128,636,742

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

The LCM of 128,636,742 is 142464.

Find LCM of 128,636,742 with Prime Factorization

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

2 x 2 x 53 x 32 x 3 x 7 = 142464

Therefore, the lowest common multiple of 128,636,742 is 142464.

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 636 x 742 = 60404736

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

636 : 1, 2, 3, 4, 6, 12, 53, 106, 159, 212, 318, 636

742 : 1, 2, 7, 14, 53, 106, 371, 742

2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 128,636,742, is 2.

Now, the common factors can be found like this.

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

636:2x 2x 3x 53

742:2x 7x 53

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

2x 2x 53 = 212

Therefore, the value for common factors is 212.

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 = 60404736/(2x212)

LCM = 60404736/424

LCM = 142464

Thus, we can understand that the LCM of 128,636,742 is 142464.

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

• LCM of 848, 568, 100
• LCM of 363, 676, 410
• LCM of 849, 431, 132
• LCM of 514, 739, 659
• LCM of 617, 350, 817

1. What is the LCM of 128, 636, 742?

Answer: LCM of 128, 636, 742 is 142464.

2. How to calculate the LCM of 128, 636, 742?

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, 636, 742.

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}.