Given numbers are 7139,1221

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

The LCM of 7139,1221 is 792429.

Find LCM of 7139,1221 with Prime Factorization

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

11 x 649 x 111 = 792429

Therefore, the lowest common multiple of 7139,1221 is 792429.

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.

7139 x 1221 = 8716719

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.

7139 : 1, 11, 59, 121, 649, 7139

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

11 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 7139,1221, is 11.

Now, the common factors can be found like this.

7139:11x 11x 59

1221:3x 11x 37

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 = 8716719/(11x1)

LCM = 8716719/11

LCM = 792429

Thus, we can understand that the LCM of 7139,1221 is 792429.

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

• LCM of 9693, 3804
• LCM of 6357, 8423
• LCM of 5465, 3738
• LCM of 8616, 5138
• LCM of 9765, 8428

1. What is the LCM of 7139, 1221?

Answer: LCM of 7139, 1221 is 792429.

2. How to calculate the LCM of 7139, 1221?

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 7139, 1221.

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}.