Given numbers are 155,421,710,139,780

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

The LCM of 155,421,710,139,780 is 100464248820.

Find LCM of 155,421,710,139,780 with Prime Factorization

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

2 x 5 x 31 x 421 x 71 x 139 x 78 = 100464248820

Therefore, the lowest common multiple of 155,421,710,139,780 is 100464248820.

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.

155 x 421 x 710 x 139 x 780 = 5023212441000

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.

155 : 1, 5, 31, 155

421 : 1, 421

710 : 1, 2, 5, 10, 71, 142, 355, 710

139 : 1, 139

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

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 155,421,710,139,780, is 1.

Now, the common factors can be found like this.

155:5x 31

421:421

710:2x 5x 71

139:139

780:2x 2x 3x 5x 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 5x 5 = 50

Therefore, the value for common factors is 50.

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 = 5023212441000/(1x50)

LCM = 5023212441000/50

LCM = 100464248820

Thus, we can understand that the LCM of 155,421,710,139,780 is 100464248820.

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

• LCM of 492, 417, 290, 688, 745
• LCM of 984, 380, 121, 912, 242
• LCM of 476, 820, 925, 170, 558
• LCM of 275, 156, 500, 836, 315
• LCM of 662, 326, 143, 781, 432

1. What is the LCM of 155, 421, 710, 139, 780?

Answer: LCM of 155, 421, 710, 139, 780 is 100464248820.

2. How to calculate the LCM of 155, 421, 710, 139, 780?

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 155, 421, 710, 139, 780.

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}.