Given numbers are 642,780,156,631,364

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

The LCM of 642,780,156,631,364 is 368642820.

Find LCM of 642,780,156,631,364 with Prime Factorization

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

2 x 2 x 3 x 13 x 107 x 5 x 1 x 631 x 7 = 368642820

Therefore, the lowest common multiple of 642,780,156,631,364 is 368642820.

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.

642 x 780 x 156 x 631 x 364 = 17942583335040

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.

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

780 : 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780

156 : 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156

631 : 1, 631

364 : 1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 642,780,156,631,364, is 1.

Now, the common factors can be found like this.

642:2x 3x 107

780:2x 2x 3x 5x 13

156:2x 2x 3x 13

631:631

364:2x 2x 7x 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 2x 2x 2x 2x 3x 3x 13x 13 = 48672

Therefore, the value for common factors is 48672.

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 = 17942583335040/(1x48672)

LCM = 17942583335040/48672

LCM = 368642820

Thus, we can understand that the LCM of 642,780,156,631,364 is 368642820.

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

• LCM of 233, 139, 245, 619, 383
• LCM of 760, 504, 872, 333, 827
• LCM of 905, 519, 391, 801, 479
• LCM of 919, 519, 860, 141, 288
• LCM of 434, 349, 443, 483, 719

1. What is the LCM of 642, 780, 156, 631, 364?

Answer: LCM of 642, 780, 156, 631, 364 is 368642820.

2. How to calculate the LCM of 642, 780, 156, 631, 364?

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 642, 780, 156, 631, 364.

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}.