Prime and Composite number, prime factorization reviewer

35

• Prime Number

• Composite Number

Tags

CCSS.4.OA.B.4

3 × 5 × 7 is the prime factorization of (a)   .

The prime factorization of (a)   is 3 x 5 × 5 x 5.

what numbers are neither prime or composite?

• 2

• 0

• 1

• all even numbers

Tags

CCSS.4.OA.B.4

We can classify numbers according to the number of factors that they have.

• FALSE

• TRUE

Answer explanation

We classify them as Prime and Composite Numbers

What method is used to find the prime numbers less than 100?

• Factorization method
• Sieve of Eratosthenes
• Trial division
• Sieve of Aristotle

Tags

CCSS.4.OA.B.4

Which of the following is not a prime number?

• 53

• 67

• 87

• 97

Tags

CCSS.4.OA.B.4

Is 29 prime or composite?

• Prime
• Composite

Tags

CCSS.4.OA.B.4

_______ is a number that has more than two factors.

• composite number

• prime number

• factors

• product

Tags

CCSS.4.OA.B.4

Are all even numbers composite numbers?

• Yes
• No

Answer explanation

only the number 2 is the only even prime number

Tags

CCSS.4.OA.B.4