Question

a number n is not a prime number and is a factor of 16 and 20​

Answer 1

Answer: 4

Step-by-step explanation:

20= 4×5

16=4×4

So, 4 is a number which is not a prime but factor of both

Answer 2

Answer:

hey mate...

your answer is...4

..

Step-by-step explanation:

as...

• we have to take all the factors of 16 and 20.
• then find the factor 2nd from 1 which is not prime..

..

so..you will find ans as...4

hope it helps u ....

thanx dost....