Given numbers are 39,21,637

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

The LCM of 39,21,637 is 1911.

Find LCM of 39,21,637 with Prime Factorization

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

3 x 7 x 13 x 1 x 1 x 7 = 1911

Therefore, the lowest common multiple of 39,21,637 is 1911.

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.

39 x 21 x 637 = 521703

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.

39 : 1, 3, 13, 39

21 : 1, 3, 7, 21

637 : 1, 7, 13, 49, 91, 637

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 39,21,637, is 1.

Now, the common factors can be found like this.

39:3x 13

21:3x 7

637:7x 7x 13

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

3x 7x 13 = 273

Therefore, the value for common factors is 273.

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 = 521703/(1x273)

LCM = 521703/273

LCM = 1911

Thus, we can understand that the LCM of 39,21,637 is 1911.

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

• LCM of 58, 90, 884
• LCM of 62, 98, 395
• LCM of 56, 91, 288
• LCM of 83, 18, 891
• LCM of 74, 36, 414

1. What is the LCM of 39, 21, 637?

Answer: LCM of 39, 21, 637 is 1911.

2. How to calculate the LCM of 39, 21, 637?

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 39, 21, 637.

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}.