Question

gcf and lcm of 15 30

Answer 1

Answer:

The LCM of 15 and 30 is 30.

The GCF of 15 and 30 is 15.

Step-by-step explanation:

Answer 2

Following are the steps for getting answer :

Given:

the numbers 15,30

To find:

GCF and LCM

Solution:

For finding GCF we will factorise

factor of 15=1,3,5

factor of 30=1, 2, 3, 5, 6, 10, 15

the Greatest common factor is 15.

GCF(15,30) = 15

Now,

For finding LCM , we will use formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b)

LCM(15,30) = ( 15 × 30) / 15

LCM(15,30) = 450 / 15

LCM(15,30) = 30

Thus,

GCF=15

LCM=30