Given numbers are 391,291,145,120

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

The LCM of 391,291,145,120 is 131985960.

Find LCM of 391,291,145,120 with Prime Factorization

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

3 x 5 x 391 x 97 x 29 x 8 = 131985960

Therefore, the lowest common multiple of 391,291,145,120 is 131985960.

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.

391 x 291 x 145 x 120 = 1979789400

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.

391 : 1, 17, 23, 391

291 : 1, 3, 97, 291

145 : 1, 5, 29, 145

120 : 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 391,291,145,120, is 1.

Now, the common factors can be found like this.

391:17x 23

291:3x 97

145:5x 29

120:2x 2x 2x 3x 5

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

3x 5 = 15

Therefore, the value for common factors is 15.

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 = 1979789400/(1x15)

LCM = 1979789400/15

LCM = 131985960

Thus, we can understand that the LCM of 391,291,145,120 is 131985960.

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

• LCM of 534, 563, 244, 179
• LCM of 177, 236, 832, 116
• LCM of 476, 228, 454, 911
• LCM of 616, 131, 670, 891
• LCM of 379, 527, 402, 204

1. What is the LCM of 391, 291, 145, 120?

Answer: LCM of 391, 291, 145, 120 is 131985960.

2. How to calculate the LCM of 391, 291, 145, 120?

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 391, 291, 145, 120.

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}.