Given numbers are 628,406,764,770,840

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

The LCM of 628,406,764,770,840 is 8035316520.

Find LCM of 628,406,764,770,840 with Prime Factorization

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

2 x 2 x 5 x 7 x 157 x 29 x 191 x 11 x 6 = 8035316520

Therefore, the lowest common multiple of 628,406,764,770,840 is 8035316520.

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.

628 x 406 x 764 x 770 x 840 = 125993763033600

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.

628 : 1, 2, 4, 157, 314, 628

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

764 : 1, 2, 4, 191, 382, 764

770 : 1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770

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

2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 628,406,764,770,840, is 2.

Now, the common factors can be found like this.

628:2x 2x 157

406:2x 7x 29

764:2x 2x 191

770:2x 5x 7x 11

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

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 5x 7x 7 = 7840

Therefore, the value for common factors is 7840.

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 = 125993763033600/(2x7840)

LCM = 125993763033600/15680

LCM = 8035316520

Thus, we can understand that the LCM of 628,406,764,770,840 is 8035316520.

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

• LCM of 896, 676, 521, 740, 646
• LCM of 628, 153, 354, 413, 168
• LCM of 656, 489, 208, 980, 227
• LCM of 662, 462, 685, 971, 420
• LCM of 277, 319, 798, 354, 181

1. What is the LCM of 628, 406, 764, 770, 840?

Answer: LCM of 628, 406, 764, 770, 840 is 8035316520.

2. How to calculate the LCM of 628, 406, 764, 770, 840?

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 628, 406, 764, 770, 840.

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}.