Given numbers are 644,902,681,878

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

The LCM of 644,902,681,878 is 86830847796.

Find LCM of 644,902,681,878 with Prime Factorization

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

2 x 322 x 451 x 681 x 439 = 86830847796

Therefore, the lowest common multiple of 644,902,681,878 is 86830847796.

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.

644 x 902 x 681 x 878 = 347323391184

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.

644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

902 : 1, 2, 11, 22, 41, 82, 451, 902

681 : 1, 3, 227, 681

878 : 1, 2, 439, 878

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 644,902,681,878, is 1.

Now, the common factors can be found like this.

644:2x 2x 7x 23

902:2x 11x 41

681:3x 227

878:2x 439

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

2x 2 = 4

Therefore, the value for common factors is 4.

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 = 347323391184/(1x4)

LCM = 347323391184/4

LCM = 86830847796

Thus, we can understand that the LCM of 644,902,681,878 is 86830847796.

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

• LCM of 380, 538, 797, 406
• LCM of 781, 910, 911, 131
• LCM of 226, 780, 234, 271
• LCM of 752, 108, 768, 851
• LCM of 642, 534, 921, 516

1. What is the LCM of 644, 902, 681, 878?

Answer: LCM of 644, 902, 681, 878 is 86830847796.

2. How to calculate the LCM of 644, 902, 681, 878?

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 644, 902, 681, 878.

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}.