Given numbers are 921,138,661

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

The LCM of 921,138,661 is 28003926.

Find LCM of 921,138,661 with Prime Factorization

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

3 x 307 x 46 x 661 = 28003926

Therefore, the lowest common multiple of 921,138,661 is 28003926.

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.

921 x 138 x 661 = 84011778

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.

921 : 1, 3, 307, 921

138 : 1, 2, 3, 6, 23, 46, 69, 138

661 : 1, 661

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 921,138,661, is 1.

Now, the common factors can be found like this.

921:3x 307

138:2x 3x 23

661:661

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 = 84011778/(1x3)

LCM = 84011778/3

LCM = 28003926

Thus, we can understand that the LCM of 921,138,661 is 28003926.

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

• LCM of 668, 404, 416
• LCM of 569, 163, 239
• LCM of 404, 806, 962
• LCM of 758, 428, 825
• LCM of 686, 978, 639

1. What is the LCM of 921, 138, 661?

Answer: LCM of 921, 138, 661 is 28003926.

2. How to calculate the LCM of 921, 138, 661?

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 921, 138, 661.

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}.