Given numbers are 998,989,778,121,421

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

The LCM of 998,989,778,121,421 is 19558876316078.

Find LCM of 998,989,778,121,421 with Prime Factorization

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

2 x 499 x 989 x 389 x 121 x 421 = 19558876316078

Therefore, the lowest common multiple of 998,989,778,121,421 is 19558876316078.

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.

998 x 989 x 778 x 121 x 421 = 39117752632156

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.

998 : 1, 2, 499, 998

989 : 1, 23, 43, 989

778 : 1, 2, 389, 778

121 : 1, 11, 121

421 : 1, 421

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 998,989,778,121,421, is 1.

Now, the common factors can be found like this.

998:2x 499

989:23x 43

778:2x 389

121:11x 11

421:421

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

2 = 2

Therefore, the value for common factors is 2.

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 = 39117752632156/(1x2)

LCM = 39117752632156/2

LCM = 19558876316078

Thus, we can understand that the LCM of 998,989,778,121,421 is 19558876316078.

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

• LCM of 256, 517, 427, 831, 111
• LCM of 901, 525, 746, 801, 396
• LCM of 344, 507, 205, 261, 959
• LCM of 286, 961, 375, 525, 946
• LCM of 611, 506, 863, 992, 281

1. What is the LCM of 998, 989, 778, 121, 421?

Answer: LCM of 998, 989, 778, 121, 421 is 19558876316078.

2. How to calculate the LCM of 998, 989, 778, 121, 421?

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 998, 989, 778, 121, 421.

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}.