Given numbers are 721,394,380,117,155

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

The LCM of 721,394,380,117,155 is 195763915620.

Find LCM of 721,394,380,117,155 with Prime Factorization

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

2 x 5 x 721 x 197 x 38 x 117 x 31 = 195763915620

Therefore, the lowest common multiple of 721,394,380,117,155 is 195763915620.

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.

721 x 394 x 380 x 117 x 155 = 1957639156200

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.

721 : 1, 7, 103, 721

394 : 1, 2, 197, 394

380 : 1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380

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

155 : 1, 5, 31, 155

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 721,394,380,117,155, is 1.

Now, the common factors can be found like this.

721:7x 103

394:2x 197

380:2x 2x 5x 19

117:3x 3x 13

155:5x 31

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

2x 5 = 10

Therefore, the value for common factors is 10.

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 = 1957639156200/(1x10)

LCM = 1957639156200/10

LCM = 195763915620

Thus, we can understand that the LCM of 721,394,380,117,155 is 195763915620.

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

• LCM of 503, 710, 276, 533, 114
• LCM of 200, 646, 986, 227, 308
• LCM of 528, 382, 970, 770, 458
• LCM of 604, 856, 411, 754, 373
• LCM of 990, 243, 544, 152, 216

1. What is the LCM of 721, 394, 380, 117, 155?

Answer: LCM of 721, 394, 380, 117, 155 is 195763915620.

2. How to calculate the LCM of 721, 394, 380, 117, 155?

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 721, 394, 380, 117, 155.

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}.