Prime Numbers Question

Use a number tree to find the prime factorization of 60

• 5x3x2x2

• 7x6x5

• 5x3x3x2

• 7x5x4

All of these are prime except

• 3

• 9

• 2

• 13

Use a number tree to find the prime factorization of 72

• 2x2x2x3x3

• 4x3x3x2

• 4x2x2x2x2

Use a factor tree to find prime factorization of 24.

• 2 x 3 x 2 x 3

• 2 x 3 x 2 x 2

• 6 x 2 x 2

• 2 x 3 x 4

How many prime numbers are there between 1 and 10?

• 3

• 4

• 5

• 6

Is 7 a prime number or a composite number?

• composite

• prime

Which of the following numbers is a prime number?

• 4

• 6

• 11

• 15

Which of the following numbers are prime?

​ ​ (a)   ​ (b)  

• 7

• 19

• 4

• 9

Is 3 a Prime or Composite number?

• Prime

• Composite

Use a factor tree to find the prime factorization of 50.

• 2 x 2 x 5 x 5

• 5 x 5 x 3 x 2

• 2 x 5 x 5

• 2 x 25