Number Divisibility

^{Which of the following is a prime number?}

• 34

• 79

• 85

• 93

Which of the following is a composite number?

• 211

• 383

• 229

• 147

List the factors of 16:

Any number that is divisible by 2 and 3 is also divisible by 4.

• TRUE

• FALSE

Any number that is divisible by 9 is also divisible by 3.

• TRUE

• FALSE

Which of the following numbers is divisible by 5 and 7?

• 175

• 270

• 215

• 150

What is the prime factorization of 80?

• 2² x 5²

• 2³ x 3 x 5

• 2⁴ x 5

• 2³ x 5

What is the prime factorization of 196?

• 2² x 7²

• 3³ x 11

• 2⁴ x 3²

• 5² x 7

Which of the following numbers has a prime factorization of 2² x 3 x 11?

• 99

• 134

• 121

• 86

All prime numbers are divisible by this factor: