Given numbers are 420,202,815,979

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

The LCM of 420,202,815,979 is 6769256340.

Find LCM of 420,202,815,979 with Prime Factorization

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

2 x 5 x 42 x 101 x 163 x 979 = 6769256340

Therefore, the lowest common multiple of 420,202,815,979 is 6769256340.

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.

420 x 202 x 815 x 979 = 67692563400

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.

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

202 : 1, 2, 101, 202

815 : 1, 5, 163, 815

979 : 1, 11, 89, 979

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 420,202,815,979, is 1.

Now, the common factors can be found like this.

420:2x 2x 3x 5x 7

202:2x 101

815:5x 163

979:11x 89

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 = 67692563400/(1x10)

LCM = 67692563400/10

LCM = 6769256340

Thus, we can understand that the LCM of 420,202,815,979 is 6769256340.

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

• LCM of 390, 370, 542, 651
• LCM of 953, 346, 210, 134
• LCM of 315, 546, 379, 788
• LCM of 588, 209, 134, 546
• LCM of 943, 846, 858, 210

1. What is the LCM of 420, 202, 815, 979?

Answer: LCM of 420, 202, 815, 979 is 6769256340.

2. How to calculate the LCM of 420, 202, 815, 979?

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 420, 202, 815, 979.

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}.