Factors and Multiples

A prime number has exactly this many factors.

Tags

CCSS.4.OA.B.4

All numbers share one common factor. It is ____

Tags

CCSS.4.OA.B.4

The prime factorization of 12 is

• 12

• $1\cdot12$

• $2\cdot2\cdot3$

• $2\cdot2\cdot2$

The prime factorization of 16 is

• $2\cdot2\cdot2\cdot2$

• $2\cdot2\cdot2$

• $2\cdot2\cdot4$

• $4\cdot4$

Tags

CCSS.6.EE.A.1

CCSS.6.EE.A.4

Choose the list that has an accurate list of the prime numbers from 1 to 20

• 2, 3, 5, 7, 11, 13, 17, 19

• 1, 2, 3, 5, 7, 11, 13, 17, 19

• 2, 3, 4, 5, 7, 11, 13, 15, 17, 19

• 2, 3, 5, 7, 17, 19

Tags

CCSS.4.OA.B.4

Which of these is a list of all the factors of 24?

• 1, 2, 12, 24

• 1, 2, 3, 4, 6, 8, 12, 24

• 1, 2, 3, 4, 5, 6, 7, 8, 12, 24

• 1, 2, 4, 6, 12, 24

The number 2 has an infinite number of multiples, but has only 2 factors. Write T or F for true or false

Tags

CCSS.4.OA.B.4

Find the list of the first 5 multiples of 3.

• 3, 6, 12, 24, 48

• 3, 9, 27, 81, 243

• 3, 4, 5, 6, 7

• 3, 6, 9, 12, 15

Tags

CCSS.3.OA.C.7

CCSS.3.OA.D.9

The LCM of 2 and 5 is

Tags

CCSS.6.NS.B.4

The LCM of 10 and 20 is

Tags

CCSS.6.NS.B.4