CW Lesson 5-2: Prime Factorization

11) Write the prime factorization of 26.

(Do not add spaces in your answer and write the prime factors in order.)

12) Write the prime factorization of 47.

• 2 x 23

• It is prime.

• 1 x 47

13) Write the prime factorization of 68.

• 2 x 34

• It is prime.

• 2² x 17

• 4 x 17

14) Write the prime factorization of 125.

• 5 x 25

• It is prime.

• 5⁴

• 5³

15) Write the prime factorization of 490.

• 2 x 5 x 49

• It is prime.

• 2 x 5 x 7²

• 10 x 49

16) Write the prime factorization of 750.

• 2 x 3³ x 5

• It is prime.

• 6 x 125

• 2 x 3 x 5³

17) Write the prime factorization of 210.

(Do not add spaces in your answer and write the prime factors in order.)

18) Write the prime factorization of 2,100.

• 2 x 3 x 5

• It is prime.

• 2³ x 3 x 5 x 7²

• 2² x 3 x 5² x 7

19) Write the prime factorization of 120.

• 2³ x 3 x 5

• It is prime.

• 30 x 4

• 2² x 3² x 5

20) Write the prime factorization of 65.

(Do not add spaces in your answer and write the prime factors in order.)