Given numbers are 770,640,121,698

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

The LCM of 770,640,121,698 is 189185920.

Find LCM of 770,640,121,698 with Prime Factorization

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

2 x 5 x 11 x 7 x 64 x 11 x 349 = 189185920

Therefore, the lowest common multiple of 770,640,121,698 is 189185920.

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.

770 x 640 x 121 x 698 = 41620902400

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.

770 : 1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770

640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640

121 : 1, 11, 121

698 : 1, 2, 349, 698

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 770,640,121,698, is 1.

Now, the common factors can be found like this.

770:2x 5x 7x 11

640:2x 2x 2x 2x 2x 2x 2x 5

121:11x 11

698:2x 349

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 5x 11 = 220

Therefore, the value for common factors is 220.

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 = 41620902400/(1x220)

LCM = 41620902400/220

LCM = 189185920

Thus, we can understand that the LCM of 770,640,121,698 is 189185920.

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

• LCM of 470, 178, 785, 634
• LCM of 283, 284, 262, 942
• LCM of 691, 398, 674, 224
• LCM of 407, 935, 217, 239
• LCM of 431, 457, 843, 770

1. What is the LCM of 770, 640, 121, 698?

Answer: LCM of 770, 640, 121, 698 is 189185920.

2. How to calculate the LCM of 770, 640, 121, 698?

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 770, 640, 121, 698.

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}.