Given numbers are 990,157,168,813

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

The LCM of 990,157,168,813 is 1179402840.

Find LCM of 990,157,168,813 with Prime Factorization

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

2 x 3 x 165 x 157 x 28 x 271 = 1179402840

Therefore, the lowest common multiple of 990,157,168,813 is 1179402840.

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.

990 x 157 x 168 x 813 = 21229251120

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.

990 : 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990

157 : 1, 157

168 : 1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168

813 : 1, 3, 271, 813

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 990,157,168,813, is 1.

Now, the common factors can be found like this.

990:2x 3x 3x 5x 11

157:157

168:2x 2x 2x 3x 7

813:3x 271

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

2x 3x 3 = 18

Therefore, the value for common factors is 18.

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 = 21229251120/(1x18)

LCM = 21229251120/18

LCM = 1179402840

Thus, we can understand that the LCM of 990,157,168,813 is 1179402840.

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

• LCM of 778, 182, 119, 761
• LCM of 711, 613, 148, 781
• LCM of 646, 633, 206, 161
• LCM of 273, 112, 708, 514
• LCM of 770, 932, 776, 868

1. What is the LCM of 990, 157, 168, 813?

Answer: LCM of 990, 157, 168, 813 is 1179402840.

2. How to calculate the LCM of 990, 157, 168, 813?

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 990, 157, 168, 813.

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}.