Given numbers are 1221,2103

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

The LCM of 1221,2103 is 855921.

Find LCM of 1221,2103 with Prime Factorization

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

3 x 407 x 701 = 855921

Therefore, the lowest common multiple of 1221,2103 is 855921.

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.

1221 x 2103 = 2567763

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.

1221 : 1, 3, 11, 33, 37, 111, 407, 1221

2103 : 1, 3, 701, 2103

3 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 1221,2103, is 3.

Now, the common factors can be found like this.

1221:3x 11x 37

2103:3x 701

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

= 1

Therefore, the value for common factors is 1.

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 = 2567763/(3x1)

LCM = 2567763/3

LCM = 855921

Thus, we can understand that the LCM of 1221,2103 is 855921.

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

• LCM of 4938, 7705
• LCM of 2609, 3157
• LCM of 7639, 7927
• LCM of 4781, 9397
• LCM of 1960, 3782

1. What is the LCM of 1221, 2103?

Answer: LCM of 1221, 2103 is 855921.

2. How to calculate the LCM of 1221, 2103?

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 1221, 2103.

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}.