Prime Factorization Practice

The following prime factorization represents which number:  2² x 3 x 7

• 14

• 84

• 42

• 70

Write 68 as a product of its prime factors.

• 2x34

• 4x17

• 2x2x17

• 2x3x17

Write 54 as a product of its prime factors.

• 2²x3³

• 2x3³

• 2x3x9

• 6x9

Write the prime factorization of the number. 28

• 1, 2, 4, 7, 14, 28

• 1, 2, 3, 8, 14, 28

• 2 x 2 x 7

• 2 x 2 x 2 x 7

Which is the prime factorization of 12 ? 

• 2 x 6

• 2 + 2 + 2 + 2 + 2 + 2 

• 2² x 3

• 1 x 2² x 3

Find the prime factorization of 105

• 7x5x3

• 11x5x3

• 7x5x2x1

• 7x5x3x2

Find the prime factorization of 80

• 4² ⋅ 5

• 2⁴ ⋅ 5

• 2 ⋅ 2 ⋅ 2

• 8 ⋅ 5 ⋅ 2

210 written as a product of its prime factors is 2x3x5x7.

• True

• False

The prime factorization of 2,520 is 2x2x2x3x3x5x7. How should it be written in index notation?

• 2x3x5x7

• 2³x3²x5x7

• 2²x3²x5x7

• 8x9x35

What is the prime factorization of 15?

• 15 x 1

• 3 x 5 x 2

• 3 x 2 x 5

• 3 x 5