Given numbers are 817,855,720,990,679

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

The LCM of 817,855,720,990,679 is 4393564560.

Find LCM of 817,855,720,990,679 with Prime Factorization

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

2 x 3 x 3 x 5 x 19 x 43 x 1 x 8 x 11 x 679 = 4393564560

Therefore, the lowest common multiple of 817,855,720,990,679 is 4393564560.

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.

817 x 855 x 720 x 990 x 679 = 338084792892000

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.

817 : 1, 19, 43, 817

855 : 1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855

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

990 : 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990

679 : 1, 7, 97, 679

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 817,855,720,990,679, is 1.

Now, the common factors can be found like this.

817:19x 43

855:3x 3x 5x 19

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

990:2x 3x 3x 5x 11

679:7x 97

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

2x 3x 3x 3x 3x 5x 5x 19 = 76950

Therefore, the value for common factors is 76950.

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 = 338084792892000/(1x76950)

LCM = 338084792892000/76950

LCM = 4393564560

Thus, we can understand that the LCM of 817,855,720,990,679 is 4393564560.

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

• LCM of 567, 402, 781, 793, 649
• LCM of 771, 213, 586, 108, 960
• LCM of 700, 799, 854, 490, 193
• LCM of 781, 587, 221, 164, 707
• LCM of 624, 287, 946, 308, 677

1. What is the LCM of 817, 855, 720, 990, 679?

Answer: LCM of 817, 855, 720, 990, 679 is 4393564560.

2. How to calculate the LCM of 817, 855, 720, 990, 679?

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 817, 855, 720, 990, 679.

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}.