Given numbers are 791,128,641,490

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

The LCM of 791,128,641,490 is 2271498880.

Find LCM of 791,128,641,490 with Prime Factorization

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

2 x 7 x 113 x 64 x 641 x 35 = 2271498880

Therefore, the lowest common multiple of 791,128,641,490 is 2271498880.

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.

791 x 128 x 641 x 490 = 31800984320

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.

791 : 1, 7, 113, 791

128 : 1, 2, 4, 8, 16, 32, 64, 128

641 : 1, 641

490 : 1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 791,128,641,490, is 1.

Now, the common factors can be found like this.

791:7x 113

128:2x 2x 2x 2x 2x 2x 2

641:641

490:2x 5x 7x 7

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

2x 7 = 14

Therefore, the value for common factors is 14.

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 = 31800984320/(1x14)

LCM = 31800984320/14

LCM = 2271498880

Thus, we can understand that the LCM of 791,128,641,490 is 2271498880.

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

• LCM of 610, 363, 327, 154
• LCM of 226, 803, 748, 362
• LCM of 896, 152, 492, 290
• LCM of 264, 878, 284, 283
• LCM of 229, 396, 219, 128

1. What is the LCM of 791, 128, 641, 490?

Answer: LCM of 791, 128, 641, 490 is 2271498880.

2. How to calculate the LCM of 791, 128, 641, 490?

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 791, 128, 641, 490.

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}.