Given numbers are 780,437,644,220

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

The LCM of 780,437,644,220 is 26246220.

Find LCM of 780,437,644,220 with Prime Factorization

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

2 x 2 x 5 x 23 x 39 x 19 x 7 x 11 = 26246220

Therefore, the lowest common multiple of 780,437,644,220 is 26246220.

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.

780 x 437 x 644 x 220 = 48293044800

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.

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

437 : 1, 19, 23, 437

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

220 : 1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 780,437,644,220, is 1.

Now, the common factors can be found like this.

780:2x 2x 3x 5x 13

437:19x 23

644:2x 2x 7x 23

220:2x 2x 5x 11

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 5x 23 = 1840

Therefore, the value for common factors is 1840.

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 = 48293044800/(1x1840)

LCM = 48293044800/1840

LCM = 26246220

Thus, we can understand that the LCM of 780,437,644,220 is 26246220.

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

• LCM of 300, 240, 731, 995
• LCM of 992, 313, 541, 283
• LCM of 895, 428, 844, 851
• LCM of 451, 274, 222, 396
• LCM of 908, 223, 169, 817

1. What is the LCM of 780, 437, 644, 220?

Answer: LCM of 780, 437, 644, 220 is 26246220.

2. How to calculate the LCM of 780, 437, 644, 220?

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 780, 437, 644, 220.

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}.