3+3=6 which is clearly not divisble by 4
All numbers divisible by 3 are NOT divisible by 9. As an example, 6, which is divisible by 3, is not divisible by 9. However, all numbers divisible by 9 are also divisible by 3 because 9 is divisible by 3.
All numbers divisible by 9 are divisible by 3; since 9 = 3 x 3 all multiples of 9 are also multiples of 3. However, all numbers divisible by 3 are not divisible by 9, eg 6 = 2 x 3 but 6 is not divisible by 9 (since 6 is not a multiple of 9) - it only takes one counter example to disprove a theory.
Your question is fake
The number 2 is even as well as prime.
There are an infinite amount of numbers. All multiples of 3135 are divisible by 3135. An example is 6270.
The answer is twenty but there are many more.
All odd numbers are not evenly divisible by 7. Try 11, for example.
Depends if you are talking about divisible with whole numbers then no. For example 60/20=3 and 60/40=1.5.
Such numbers are called even numbers; an example is 4.
90 and all of its multiples.
No. For example, 6 is an even number which is divisible by 2 but not divisible by 4.
No because as for example 25 is evenly divisible by 5 but not by 10