Given numbers are 639,213,842

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

The LCM of 639,213,842 is 538038.

Find LCM of 639,213,842 with Prime Factorization

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

3 x 71 x 3 x 1 x 842 = 538038

Therefore, the lowest common multiple of 639,213,842 is 538038.

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.

639 x 213 x 842 = 114602094

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.

639 : 1, 3, 9, 71, 213, 639

213 : 1, 3, 71, 213

842 : 1, 2, 421, 842

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 639,213,842, is 1.

Now, the common factors can be found like this.

639:3x 3x 71

213:3x 71

842:2x 421

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

3x 71 = 213

Therefore, the value for common factors is 213.

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 = 114602094/(1x213)

LCM = 114602094/213

LCM = 538038

Thus, we can understand that the LCM of 639,213,842 is 538038.

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

• LCM of 681, 767, 172
• LCM of 693, 875, 444
• LCM of 836, 632, 406
• LCM of 985, 126, 342
• LCM of 487, 605, 837

1. What is the LCM of 639, 213, 842?

Answer: LCM of 639, 213, 842 is 538038.

2. How to calculate the LCM of 639, 213, 842?

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 639, 213, 842.

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}.