Given numbers are 689,428,538,865

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

The LCM of 689,428,538,865 is 68616945020.

Find LCM of 689,428,538,865 with Prime Factorization

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

2 x 689 x 214 x 269 x 865 = 68616945020

Therefore, the lowest common multiple of 689,428,538,865 is 68616945020.

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.

689 x 428 x 538 x 865 = 137233890040

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.

689 : 1, 13, 53, 689

428 : 1, 2, 4, 107, 214, 428

538 : 1, 2, 269, 538

865 : 1, 5, 173, 865

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 689,428,538,865, is 1.

Now, the common factors can be found like this.

689:13x 53

428:2x 2x 107

538:2x 269

865:5x 173

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

2 = 2

Therefore, the value for common factors is 2.

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 = 137233890040/(1x2)

LCM = 137233890040/2

LCM = 68616945020

Thus, we can understand that the LCM of 689,428,538,865 is 68616945020.

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

• LCM of 672, 413, 596, 843
• LCM of 978, 980, 136, 192
• LCM of 731, 870, 957, 145
• LCM of 241, 191, 648, 381
• LCM of 627, 783, 141, 898

1. What is the LCM of 689, 428, 538, 865?

Answer: LCM of 689, 428, 538, 865 is 68616945020.

2. How to calculate the LCM of 689, 428, 538, 865?

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 689, 428, 538, 865.

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}.