Which of the following statements are true? If a number divisible by 3, it must be divisible by 9. If a number is divisible by 9, it must be divisible by 3. If a number is divisible by 4, it must be divisible by 8. If a number is divisible by 8,it must be divisible by 4. A number is divisible by 18, if it is divisible by both 3 and 6. If a number divisible by both 9 and 10, it must be divisible by 90.

Which of the following statements are true? If a number is divisible by 3, it must be divisible by 9. If a number is divisible by 9, it must be divisible by 3. If a number is divisible by 4, it must be divisible by 8. If a number is divisible by 8, it must be divisible by 4. If a number is divisible by 18, if it is divisible by both 3 and 6. If a number is divisible by both 9 and 10, it must be divisible by 90. If a number exactly divides the sum of two numbers, it must exactly divide the numbers separately. If a number divides three numbers exactly, it must divide their sum exactly. If two numbers are co-prime, at least one of them must be a prime number. The sum of two consecutive odd numbers is always divisible by 4.

If a number is divisible by 9 and 16, it must be divisible by 9 xx 16

Write the converse of the statement. If a number is divisible by 9, then it is divisible by 3.

If a number is divisible by x, then it is also divisible/not divisible by multiples of x

Write the contrapositive of :if a number is divisible by 9 then it is divisible by 3"

A number is divisible by 24. By what other numbers will that number be divisible?

The number 24! is divisible by

If a number is divisible by x, then it is also divisible/not divisible by all the factors of x.

A number is divisible by 12. By what other numbers will that number be divisible ?

The number of prime number divisible by 2 plus the number of prime number divisible by 3 is