Question

11. Give an example of the following.
a. A number divisible by 7 and 3 but not by 21. - 2
not b12​

Answer 1

Answer:

Step-by-step explanation:

If a number is divisible by 7, and divisible by 3, it is also divisible by 21, because 21 is the product of these two prime factors.

So, no such number exists

Answer 2

Answer:

If a number is divisible by 7, and divisible by 3, it is divisible by 21, because 21 is the product of these two prime factors.....

so, no much numbers exists....