Given numbers are 655,485,257,420

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

The LCM of 655,485,257,420 is 1371593580.

Find LCM of 655,485,257,420 with Prime Factorization

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

5 x 131 x 97 x 257 x 84 = 1371593580

Therefore, the lowest common multiple of 655,485,257,420 is 1371593580.

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.

655 x 485 x 257 x 420 = 34289839500

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.

655 : 1, 5, 131, 655

485 : 1, 5, 97, 485

257 : 1, 257

420 : 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 655,485,257,420, is 1.

Now, the common factors can be found like this.

655:5x 131

485:5x 97

257:257

420:2x 2x 3x 5x 7

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

5x 5 = 25

Therefore, the value for common factors is 25.

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 = 34289839500/(1x25)

LCM = 34289839500/25

LCM = 1371593580

Thus, we can understand that the LCM of 655,485,257,420 is 1371593580.

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

• LCM of 188, 821, 699, 946
• LCM of 461, 582, 362, 240
• LCM of 338, 836, 842, 109
• LCM of 845, 940, 320, 644
• LCM of 244, 599, 572, 389

1. What is the LCM of 655, 485, 257, 420?

Answer: LCM of 655, 485, 257, 420 is 1371593580.

2. How to calculate the LCM of 655, 485, 257, 420?

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 655, 485, 257, 420.

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}.