Given numbers are 690,158,504,421

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

The LCM of 690,158,504,421 is 1927691640.

Find LCM of 690,158,504,421 with Prime Factorization

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

2 x 3 x 115 x 79 x 84 x 421 = 1927691640

Therefore, the lowest common multiple of 690,158,504,421 is 1927691640.

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.

690 x 158 x 504 x 421 = 23132299680

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.

690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690

158 : 1, 2, 79, 158

504 : 1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504

421 : 1, 421

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 690,158,504,421, is 1.

Now, the common factors can be found like this.

690:2x 3x 5x 23

158:2x 79

504:2x 2x 2x 3x 3x 7

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.

2x 2x 3 = 12

Therefore, the value for common factors is 12.

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 = 23132299680/(1x12)

LCM = 23132299680/12

LCM = 1927691640

Thus, we can understand that the LCM of 690,158,504,421 is 1927691640.

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

• LCM of 839, 574, 239, 425
• LCM of 364, 890, 413, 700
• LCM of 674, 553, 769, 409
• LCM of 506, 618, 853, 395
• LCM of 668, 439, 662, 619

1. What is the LCM of 690, 158, 504, 421?

Answer: LCM of 690, 158, 504, 421 is 1927691640.

2. How to calculate the LCM of 690, 158, 504, 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 690, 158, 504, 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}.