NUMBERS

PRIME NUMBERS

PRIME NUMBERS

• In math, prime numbers are whole numbers greater than 1, that have only two factors – 1 and the number itself.

  Prime numbers are divisible only by the number 1 or itself.  

• 1 is not a prime number.

• For example, 2, 3, 5, 7 and 11 are the first few prime numbers.

• 2 only can be divide by 1 and 2. 2÷1=2, 2÷2=1

• 3 also can be divide by 1 and 3 only. 3÷1=3, 3÷3=1

The list of prime number less than 100

Multiple Choice

Is every single even number composite? If not, what number is prime?

• Yes
• No,16
• No, 2
• No, 2 and 4

Multiple Choice

Is 35 prime or composite?

• prime
• composite

Multiple Choice

Is 29 prime or composite?

• Prime
• Composite

Multiple Choice

What are all prime numbers divisable by?

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

Multiple Choice

List the first 5 numbers that are NOT prime numbers:

• 4,6,7,8,9
• 0,1,4,6,8
• 4,6,8,10,12
• -1,-2,-3,-4,-5

Multiple Choice

List the first 5 prime numbers:

• 1,2,3,4,5
• 2,3,4,5,6
• 2,3,5,7,8
• 2,3,5,7,11

Multiple Choice

Are 0 and 1 prime numbers?

• yes
• no

Multiple Choice

What is the first prime number?

• 1
• 2
• 3
• 5