Question

A number is multiple of 4. how do you know a number that is 20 greater( a number that is multiple of 4+20) is not prime number.​

Answer 1

Answer:

if the number is multiple of 4 it can't be a prime no. as number is always even that will not be a prime no.

Answer 2

Step-by-step explanation:

hi

first a number multiple of 4

so, the we take lcm of the number 4

rule for not a prime number

factors of 4 can divide that number completely

here

factor if 4 is 1,2,4

example

20+4 = 24

1 can completely divide 24

2 can completely divide 24

4 can completely divide 24

so

a number multiple of 4 graeter than 20 is not a prime number