Given numbers are 278,442,660,987

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

The LCM of 278,442,660,987 is 6670323660.

Find LCM of 278,442,660,987 with Prime Factorization

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

2 x 3 x 139 x 221 x 110 x 329 = 6670323660

Therefore, the lowest common multiple of 278,442,660,987 is 6670323660.

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.

278 x 442 x 660 x 987 = 80043883920

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.

278 : 1, 2, 139, 278

442 : 1, 2, 13, 17, 26, 34, 221, 442

660 : 1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660

987 : 1, 3, 7, 21, 47, 141, 329, 987

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 278,442,660,987, is 1.

Now, the common factors can be found like this.

278:2x 139

442:2x 13x 17

660:2x 2x 3x 5x 11

987:3x 7x 47

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 3 = 12

Therefore, the value for common factors is 12.

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 = 80043883920/(1x12)

LCM = 80043883920/12

LCM = 6670323660

Thus, we can understand that the LCM of 278,442,660,987 is 6670323660.

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

• LCM of 629, 402, 931, 994
• LCM of 952, 860, 875, 494
• LCM of 684, 583, 482, 800
• LCM of 661, 397, 876, 683
• LCM of 868, 658, 856, 447

1. What is the LCM of 278, 442, 660, 987?

Answer: LCM of 278, 442, 660, 987 is 6670323660.

2. How to calculate the LCM of 278, 442, 660, 987?

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 278, 442, 660, 987.

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}.