Given numbers are 406,620,840,670

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

The LCM of 406,620,840,670 is 50595720.

Find LCM of 406,620,840,670 with Prime Factorization

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

2 x 2 x 5 x 7 x 29 x 31 x 6 x 67 = 50595720

Therefore, the lowest common multiple of 406,620,840,670 is 50595720.

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.

406 x 620 x 840 x 670 = 141668016000

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.

406 : 1, 2, 7, 14, 29, 58, 203, 406

620 : 1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620

840 : 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840

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

2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 406,620,840,670, is 2.

Now, the common factors can be found like this.

406:2x 7x 29

620:2x 2x 5x 31

840:2x 2x 2x 3x 5x 7

670:2x 5x 67

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 5x 5x 7 = 1400

Therefore, the value for common factors is 1400.

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 = 141668016000/(2x1400)

LCM = 141668016000/2800

LCM = 50595720

Thus, we can understand that the LCM of 406,620,840,670 is 50595720.

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

• LCM of 367, 586, 624, 733
• LCM of 262, 324, 902, 147
• LCM of 247, 333, 956, 930
• LCM of 843, 341, 679, 606
• LCM of 652, 446, 409, 145

1. What is the LCM of 406, 620, 840, 670?

Answer: LCM of 406, 620, 840, 670 is 50595720.

2. How to calculate the LCM of 406, 620, 840, 670?

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 406, 620, 840, 670.

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}.