Given numbers are 128,249,642,169

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

The LCM of 128,249,642,169 is 576341376.

Find LCM of 128,249,642,169 with Prime Factorization

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

2 x 3 x 64 x 83 x 107 x 169 = 576341376

Therefore, the lowest common multiple of 128,249,642,169 is 576341376.

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 249 x 642 x 169 = 3458048256

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

249 : 1, 3, 83, 249

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

169 : 1, 13, 169

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 128,249,642,169, is 1.

Now, the common factors can be found like this.

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

249:3x 83

642:2x 3x 107

169:13x 13

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

2x 3 = 6

Therefore, the value for common factors is 6.

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 = 3458048256/(1x6)

LCM = 3458048256/6

LCM = 576341376

Thus, we can understand that the LCM of 128,249,642,169 is 576341376.

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

• LCM of 208, 880, 463, 843
• LCM of 781, 950, 127, 276
• LCM of 627, 530, 934, 285
• LCM of 161, 957, 887, 508
• LCM of 670, 978, 416, 288

1. What is the LCM of 128, 249, 642, 169?

Answer: LCM of 128, 249, 642, 169 is 576341376.

2. How to calculate the LCM of 128, 249, 642, 169?

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, 249, 642, 169.

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}.