Given numbers are 397,42,556

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

The LCM of 397,42,556 is 4635372.

Find LCM of 397,42,556 with Prime Factorization

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

2 x 397 x 21 x 278 = 4635372

Therefore, the lowest common multiple of 397,42,556 is 4635372.

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.

397 x 42 x 556 = 9270744

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.

397 : 1, 397

42 : 1, 2, 3, 6, 7, 14, 21, 42

556 : 1, 2, 4, 139, 278, 556

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 397,42,556, is 1.

Now, the common factors can be found like this.

397:397

42:2x 3x 7

556:2x 2x 139

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

2 = 2

Therefore, the value for common factors is 2.

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 = 9270744/(1x2)

LCM = 9270744/2

LCM = 4635372

Thus, we can understand that the LCM of 397,42,556 is 4635372.

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

• LCM of 573, 24, 127
• LCM of 987, 32, 852
• LCM of 428, 22, 201
• LCM of 551, 33, 856
• LCM of 488, 13, 751

1. What is the LCM of 397, 42, 556?

Answer: LCM of 397, 42, 556 is 4635372.

2. How to calculate the LCM of 397, 42, 556?

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 397, 42, 556.

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}.