Given numbers are 661,470,620

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

The LCM of 661,470,620 is 19261540.

Find LCM of 661,470,620 with Prime Factorization

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

2 x 5 x 661 x 47 x 62 = 19261540

Therefore, the lowest common multiple of 661,470,620 is 19261540.

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.

661 x 470 x 620 = 192615400

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.

661 : 1, 661

470 : 1, 2, 5, 10, 47, 94, 235, 470

620 : 1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 661,470,620, is 1.

Now, the common factors can be found like this.

661:661

470:2x 5x 47

620:2x 2x 5x 31

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

2x 5 = 10

Therefore, the value for common factors is 10.

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 = 192615400/(1x10)

LCM = 192615400/10

LCM = 19261540

Thus, we can understand that the LCM of 661,470,620 is 19261540.

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

• LCM of 649, 973, 989
• LCM of 457, 784, 158
• LCM of 683, 624, 892
• LCM of 172, 209, 882
• LCM of 993, 210, 933

1. What is the LCM of 661, 470, 620?

Answer: LCM of 661, 470, 620 is 19261540.

2. How to calculate the LCM of 661, 470, 620?

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 661, 470, 620.

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}.