Given numbers are 641,646,170,479

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

The LCM of 641,646,170,479 is 991735970.

Find LCM of 641,646,170,479 with Prime Factorization

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

2 x 17 x 641 x 19 x 5 x 479 = 991735970

Therefore, the lowest common multiple of 641,646,170,479 is 991735970.

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.

641 x 646 x 170 x 479 = 33719022980

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.

641 : 1, 641

646 : 1, 2, 17, 19, 34, 38, 323, 646

170 : 1, 2, 5, 10, 17, 34, 85, 170

479 : 1, 479

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 641,646,170,479, is 1.

Now, the common factors can be found like this.

641:641

646:2x 17x 19

170:2x 5x 17

479:479

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

2x 17 = 34

Therefore, the value for common factors is 34.

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 = 33719022980/(1x34)

LCM = 33719022980/34

LCM = 991735970

Thus, we can understand that the LCM of 641,646,170,479 is 991735970.

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

• LCM of 736, 298, 145, 299
• LCM of 373, 345, 137, 364
• LCM of 306, 156, 938, 158
• LCM of 372, 670, 354, 926
• LCM of 377, 145, 827, 619

1. What is the LCM of 641, 646, 170, 479?

Answer: LCM of 641, 646, 170, 479 is 991735970.

2. How to calculate the LCM of 641, 646, 170, 479?

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 641, 646, 170, 479.

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}.