Given numbers are 291,720,821,351

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

The LCM of 291,720,821,351 is 2236206960.

Find LCM of 291,720,821,351 with Prime Factorization

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

3 x 3 x 97 x 80 x 821 x 39 = 2236206960

Therefore, the lowest common multiple of 291,720,821,351 is 2236206960.

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.

291 x 720 x 821 x 351 = 60377587920

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.

291 : 1, 3, 97, 291

720 : 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720

821 : 1, 821

351 : 1, 3, 9, 13, 27, 39, 117, 351

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 291,720,821,351, is 1.

Now, the common factors can be found like this.

291:3x 97

720:2x 2x 2x 2x 3x 3x 5

821:821

351:3x 3x 3x 13

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

3x 3x 3 = 27

Therefore, the value for common factors is 27.

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 = 60377587920/(1x27)

LCM = 60377587920/27

LCM = 2236206960

Thus, we can understand that the LCM of 291,720,821,351 is 2236206960.

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

• LCM of 826, 495, 858, 990
• LCM of 582, 606, 121, 439
• LCM of 486, 814, 279, 886
• LCM of 833, 936, 469, 874
• LCM of 917, 138, 601, 942

1. What is the LCM of 291, 720, 821, 351?

Answer: LCM of 291, 720, 821, 351 is 2236206960.

2. How to calculate the LCM of 291, 720, 821, 351?

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 291, 720, 821, 351.

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}.