Given numbers are 420,239,687

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

The LCM of 420,239,687 is 22987020.

Find LCM of 420,239,687 with Prime Factorization

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

3 x 140 x 239 x 229 = 22987020

Therefore, the lowest common multiple of 420,239,687 is 22987020.

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.

420 x 239 x 687 = 68961060

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.

420 : 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420

239 : 1, 239

687 : 1, 3, 229, 687

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 420,239,687, is 1.

Now, the common factors can be found like this.

420:2x 2x 3x 5x 7

239:239

687:3x 229

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

3 = 3

Therefore, the value for common factors is 3.

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 = 68961060/(1x3)

LCM = 68961060/3

LCM = 22987020

Thus, we can understand that the LCM of 420,239,687 is 22987020.

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

• LCM of 202, 918, 939
• LCM of 334, 884, 242
• LCM of 567, 221, 589
• LCM of 545, 973, 359
• LCM of 821, 875, 949

1. What is the LCM of 420, 239, 687?

Answer: LCM of 420, 239, 687 is 22987020.

2. How to calculate the LCM of 420, 239, 687?

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 420, 239, 687.

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}.