Given numbers are 161,790,676,720

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

The LCM of 161,790,676,720 is 1547647920.

Find LCM of 161,790,676,720 with Prime Factorization

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

2 x 2 x 5 x 161 x 79 x 169 x 36 = 1547647920

Therefore, the lowest common multiple of 161,790,676,720 is 1547647920.

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 790 x 676 x 720 = 61905916800

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

790 : 1, 2, 5, 10, 79, 158, 395, 790

676 : 1, 2, 4, 13, 26, 52, 169, 338, 676

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

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 161,790,676,720, is 1.

Now, the common factors can be found like this.

161:7x 23

790:2x 5x 79

676:2x 2x 13x 13

720:2x 2x 2x 2x 3x 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.

2x 2x 2x 5 = 40

Therefore, the value for common factors is 40.

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 = 61905916800/(1x40)

LCM = 61905916800/40

LCM = 1547647920

Thus, we can understand that the LCM of 161,790,676,720 is 1547647920.

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

• LCM of 905, 128, 924, 486
• LCM of 910, 257, 493, 619
• LCM of 265, 292, 235, 626
• LCM of 168, 315, 994, 224
• LCM of 138, 582, 257, 813

1. What is the LCM of 161, 790, 676, 720?

Answer: LCM of 161, 790, 676, 720 is 1547647920.

2. How to calculate the LCM of 161, 790, 676, 720?

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, 790, 676, 720.

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}.