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How know if a number can be divided by 3?

• A number can be divided by 3 if it is a prime number.
• A number can be divided by 3 if it ends in 0 or 5.
• A number can be divided by 3 if the sum of its digits is divisible by 3.
• A number can be divided by 3 if it is even.

Which number can be divded by 7?

• 151

• 223

• 302

• 735

Wich number can be divided by 11?

• 172

• 982

• 623

• 737

Which number can be divided by 5?

• 333

• 456

• 250

• 124

Wich number can be divided by 3 and 7 at the same time?

• 42

• 65

• 81

• 35

How can you tell if a number is divisible by 6?

• A number is divisible by 6 if it ends in 2 or 4.

• A number is divisible by 6 if it is a prime number.

• A number is divisible by 6 if it is a multiple of 2 and 3.

• A number is divisible by 6 if it is odd.

Wich one is a prime number?

• 2
• 91

• 4
• 27

Wich one is a composite number?

• 49

• 97

• 59

• 31

Which of the following numbers is a multiple of 9?

• 27

• 34

• 56

• 48

Wich number is multiple of 7 and 2?

• 12
• 21
• 34

• 28