Given numbers are 686,286,646

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

The LCM of 686,286,646 is 31685654.

Find LCM of 686,286,646 with Prime Factorization

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

2 x 343 x 143 x 323 = 31685654

Therefore, the lowest common multiple of 686,286,646 is 31685654.

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.

686 x 286 x 646 = 126742616

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.

686 : 1, 2, 7, 14, 49, 98, 343, 686

286 : 1, 2, 11, 13, 22, 26, 143, 286

646 : 1, 2, 17, 19, 34, 38, 323, 646

2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 686,286,646, is 2.

Now, the common factors can be found like this.

686:2x 7x 7x 7

286:2x 11x 13

646:2x 17x 19

From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.

2 = 2

Therefore, the value for common factors is 2.

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 = 126742616/(2x2)

LCM = 126742616/4

LCM = 31685654

Thus, we can understand that the LCM of 686,286,646 is 31685654.

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

• LCM of 690, 424, 946
• LCM of 646, 145, 687
• LCM of 489, 604, 260
• LCM of 985, 754, 285
• LCM of 159, 554, 453

1. What is the LCM of 686, 286, 646?

Answer: LCM of 686, 286, 646 is 31685654.

2. How to calculate the LCM of 686, 286, 646?

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 686, 286, 646.

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}.