Given numbers are 780,670,621,434,421

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

The LCM of 780,670,621,434,421 is 988283581740.

Find LCM of 780,670,621,434,421 with Prime Factorization

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

2 x 3 x 5 x 26 x 67 x 207 x 217 x 421 = 988283581740

Therefore, the lowest common multiple of 780,670,621,434,421 is 988283581740.

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 670 x 621 x 434 x 421 = 59297014904400

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

670 : 1, 2, 5, 10, 67, 134, 335, 670

621 : 1, 3, 9, 23, 27, 69, 207, 621

434 : 1, 2, 7, 14, 31, 62, 217, 434

421 : 1, 421

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 780,670,621,434,421, is 1.

Now, the common factors can be found like this.

780:2x 2x 3x 5x 13

670:2x 5x 67

621:3x 3x 3x 23

434:2x 7x 31

421:421

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 3x 5 = 60

Therefore, the value for common factors is 60.

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 = 59297014904400/(1x60)

LCM = 59297014904400/60

LCM = 988283581740

Thus, we can understand that the LCM of 780,670,621,434,421 is 988283581740.

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

• LCM of 198, 570, 821, 191, 511
• LCM of 241, 326, 774, 472, 261
• LCM of 360, 569, 631, 869, 647
• LCM of 951, 109, 178, 922, 160
• LCM of 110, 360, 645, 893, 978

1. What is the LCM of 780, 670, 621, 434, 421?

Answer: LCM of 780, 670, 621, 434, 421 is 988283581740.

2. How to calculate the LCM of 780, 670, 621, 434, 421?

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, 670, 621, 434, 421.

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}.