Given numbers are 987,163,121,978

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

The LCM of 987,163,121,978 is 38933202.

Find LCM of 987,163,121,978 with Prime Factorization

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

3 x 163 x 329 x 1 x 121 x 2 = 38933202

Therefore, the lowest common multiple of 987,163,121,978 is 38933202.

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.

987 x 163 x 121 x 978 = 19038335778

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.

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

163 : 1, 163

121 : 1, 11, 121

978 : 1, 2, 3, 6, 163, 326, 489, 978

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 987,163,121,978, is 1.

Now, the common factors can be found like this.

987:3x 7x 47

163:163

121:11x 11

978:2x 3x 163

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

3x 163 = 489

Therefore, the value for common factors is 489.

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 = 19038335778/(1x489)

LCM = 19038335778/489

LCM = 38933202

Thus, we can understand that the LCM of 987,163,121,978 is 38933202.

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

• LCM of 724, 819, 143, 566
• LCM of 469, 856, 627, 763
• LCM of 433, 980, 579, 907
• LCM of 576, 376, 460, 950
• LCM of 679, 809, 302, 912

1. What is the LCM of 987, 163, 121, 978?

Answer: LCM of 987, 163, 121, 978 is 38933202.

2. How to calculate the LCM of 987, 163, 121, 978?

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 987, 163, 121, 978.

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}.