Year 7 - Prime and Composite Numbers, Prime factors

Find the prime factorization of 40

• 2 x 5 x 2
• 2 x 20
• 5 x 8
• 2 x 2 x 2 x 5

Prime numbers have _____ factors.

• no
• 3
• 1
• 2

Tags

CCSS.4.OA.B.4

What is the prime factorization of 15?

• 3x3x3
• 2x2x5
• 15
• 3x5

Tags

CCSS.4.OA.B.4

A PRIME NUMBER is...

• a number that has only one factor.
• a number that has at least two factors.
• a number that has more than two factors.
• a number that has only two factors.
  (1 and itself)

Tags

CCSS.4.OA.B.4

Is 2 a prime or composite number?

• Prime
• Composite

Tags

CCSS.4.OA.B.4

Find the PRIME number

• 10
• 9
• 7
• 4

Tags

CCSS.4.OA.B.4

What are the prime factors of 30? 

• 3, 2, 5 
• 1, 2, 3, 5, 6, 15, 30
• 3, 30
• 10, 3

The next term of the sequence 2,4,8,16 are

• 64
• 32
• 108
• 20

Tags

CCSS.4.OA.C.5

Which number is NOT a factor of 10?

• 1
• 2
• 3
• 5

Which number is NOT a factor of 18 ?

• 2
• 3
• 5
• 9