Given numbers are 861,61,438

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

The LCM of 861,61,438 is 7668066.

Find LCM of 861,61,438 with Prime Factorization

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

3 x 287 x 61 x 146 = 7668066

Therefore, the lowest common multiple of 861,61,438 is 7668066.

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.

861 x 61 x 438 = 23004198

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.

861 : 1, 3, 7, 21, 41, 123, 287, 861

61 : 1, 61

438 : 1, 2, 3, 6, 73, 146, 219, 438

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 861,61,438, is 1.

Now, the common factors can be found like this.

861:3x 7x 41

61:61

438:2x 3x 73

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 = 23004198/(1x3)

LCM = 23004198/3

LCM = 7668066

Thus, we can understand that the LCM of 861,61,438 is 7668066.

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

• LCM of 175, 34, 492
• LCM of 236, 99, 355
• LCM of 951, 80, 191
• LCM of 325, 29, 565
• LCM of 653, 89, 786

1. What is the LCM of 861, 61, 438?

Answer: LCM of 861, 61, 438 is 7668066.

2. How to calculate the LCM of 861, 61, 438?

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 861, 61, 438.

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}.