Given numbers are 161,720,887,989

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

The LCM of 161,720,887,989 is 4421304720.

Find LCM of 161,720,887,989 with Prime Factorization

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

23 x 7 x 720 x 887 x 43 = 4421304720

Therefore, the lowest common multiple of 161,720,887,989 is 4421304720.

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.

161 x 720 x 887 x 989 = 101690008560

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.

161 : 1, 7, 23, 161

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

887 : 1, 887

989 : 1, 23, 43, 989

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 161,720,887,989, is 1.

Now, the common factors can be found like this.

161:7x 23

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

887:887

989:23x 43

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

23 = 23

Therefore, the value for common factors is 23.

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 = 101690008560/(1x23)

LCM = 101690008560/23

LCM = 4421304720

Thus, we can understand that the LCM of 161,720,887,989 is 4421304720.

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

• LCM of 846, 570, 735, 195
• LCM of 551, 892, 702, 515
• LCM of 967, 414, 728, 627
• LCM of 581, 555, 755, 435
• LCM of 524, 468, 822, 421

1. What is the LCM of 161, 720, 887, 989?

Answer: LCM of 161, 720, 887, 989 is 4421304720.

2. How to calculate the LCM of 161, 720, 887, 989?

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 161, 720, 887, 989.

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}.