Question

step by step lcm of 13,9,15,7,15​

Answer 1

Answer:

LCM=3×3×5×7×13

=4015

Step-by-step explanation:

Refer to the given attachment

Answer 2

Answer: Least common multiple (LCM)

Step-by-step explanation:

The methods to find the LCM are :-  

• By Division Method
• By Listing Multiples
• By Prime Factorization Method

List all prime factors for each number.

Prime Factorization of 7 shows:

7 is prime  =>  71

Prime Factorization of 9 is:

3 x 3  =>  32

Prime Factorization of 13 shows:

13 is prime  =>  131

Prime Factorization of 15 is:

3 x 5  =>  31 x 51

For each prime factor, find where it occurs most often as a factor and write it that many times in a new list.

The new superset list is

3, 3, 5, 7, 13

Multiply these factors together to find the LCM.

LCM = 3 x 3 x 5 x 7 x 13 = 4095

In exponential form:

LCM = 32 x 51 x 71 x 131 = 4095

LCM = 4095

Therefore,

LCM(7, 9, 13, 15) = 4095