Given numbers are 121,108,428,397

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

The LCM of 121,108,428,397 is 555115572.

Find LCM of 121,108,428,397 with Prime Factorization

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

2 x 2 x 121 x 27 x 107 x 397 = 555115572

Therefore, the lowest common multiple of 121,108,428,397 is 555115572.

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.

121 x 108 x 428 x 397 = 2220462288

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.

121 : 1, 11, 121

108 : 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108

428 : 1, 2, 4, 107, 214, 428

397 : 1, 397

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 121,108,428,397, is 1.

Now, the common factors can be found like this.

121:11x 11

108:2x 2x 3x 3x 3

428:2x 2x 107

397:397

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

2x 2 = 4

Therefore, the value for common factors is 4.

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 = 2220462288/(1x4)

LCM = 2220462288/4

LCM = 555115572

Thus, we can understand that the LCM of 121,108,428,397 is 555115572.

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

• LCM of 387, 100, 607, 437
• LCM of 402, 938, 990, 327
• LCM of 305, 469, 658, 385
• LCM of 618, 882, 609, 389
• LCM of 129, 630, 177, 552

1. What is the LCM of 121, 108, 428, 397?

Answer: LCM of 121, 108, 428, 397 is 555115572.

2. How to calculate the LCM of 121, 108, 428, 397?

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 121, 108, 428, 397.

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}.