Prime and composite numbers

Prime numbers have:

• Exactly 2 factors
• 2 pairs of factors
• More than 2 factors
• 1 factor

Tags

CCSS.4.OA.B.4

Composite numbers:

• Are always bigger than prime numbers
• Have more than 2 factors
• Have 2 pairs of factors
• Don't have factors

Tags

CCSS.4.OA.B.4

which number is composite

• 11
  11
• 13
• 21
• 23

Tags

CCSS.4.OA.B.4

Which number is NOT a factor of 10?

• 1
• 2
• 3
• 5

Tags

CCSS.4.OA.B.4

Which is a prime number?

• 15
• 17
• 21
• 39

Is 100 a prime or composite number?

• Prime
• Composite

Tags

CCSS.4.OA.B.4

What are all prime numbers divisible by?

• 1, 2, and itself
• 1 and itself
• Every number from 1-10
• They aren't divisable at all

Tags

CCSS.4.OA.B.4

Which of the following equations will NOT result in a multiple of 5?

• 11 x 5 = _
• 2 x 5 = _
• 6 x 5 = _
• 7 x 3 = _

Tags

CCSS.3.OA.B.5

CCSS.3.OA.C.7

Which of the following numbers shows all of the factors of 12?

• 1,2,3,4,6,12
• 1,2,3,4,6,8,12
• 1,2,4,6,12
• 2,4,6,8,10,12

Tags

CCSS.4.OA.B.4

Simon (Mr. Lovett) completed 4 sets of chin-ups. Every set he reached a different composite number of chin-ups. Knowing this, number of chin-ups could he have reached in each set?

• 11, 13, 17, 19

• 10, 11, 12, 13

• 11, 14, 15, 17

• 11, 15, 17, 19