A number with exactly two factors, 1 and the number itself.
What is a PRIME NUMBER?
100
Jorge has a prime number on his soccer jersey. Which of the following could NOT be Jorge's number?
37
23
15
29
15
100
What are ALL the factors of 20?
1, 2, 4, 5, 10, and 20?
100
How do you know if a number is divisible by 2?
It ends in 0,2,4,6,8.
100
What is the prime factorization of 125?
5 X 5 X 5
5 to the third power
200
A number with more than two factors.
What is a COMPOSITE NUMBER?
200
Which of the following is a PRIME NUMBER?
18
25
53
51
53
200
Which number is composite?
23
48
31
67
What is 48?
200
How do you know if a number is divisible by 10?
It ends with 0.
200
What is the prime factorization 360?
2 X 2 X 2 X 3 X 3 X 5
2 to the third power times 3 to the second power times 5
300
A number written as the product of its prime factors.
What is prime factorization?
300
What are the first 10 prime numbers?
2, 3, 5, 7, 11, 13, 17, 19, 23, 29
300
Alyson is racing at a go-cart track. The go-cart that she is driving has a COMPOSITE NUMBER. Which of the following could NOT be her go-cart number?
51
39
27
29
29
300
How do you know if a number is divisible by 3?
Add the digits and determine if the sum is a multiple of 3.
300
The prime factorization, using exponents, of 164
What is 2^2 X 41?
2 X 2 X 41
400
A number multiplied by another number to find a product.
What is a FACTOR?
400
Which number is NOT prime?
24
33
51
59
What is 59?
400
Meredith’s street address is a composite number less than 10 that can be formed by multiplying 2 different prime numbers. What is Meredith’s street address?
6
2 and 3 are the only two prime numbers whose product is less than 10
(2 x 3 = 6).
400
Is 423 divisible by 3?
Yes
4 + 2 + 3 = 9
400
The prime factorization of 528 using exponents?
What is 2^4 X 3 X 11?
2 X 2 X 2 X 2 X 3 X 11
500
What is the number that indicaes how many times the base is used as a factor?
What is an exponent?
500
Tell wheter each number is prime or composite.
23
48
31
18
What is
23 prime
48 composite
31prime
18 composite
500
Which of the following numbers is NOT composite?
18
54
59
111
What is 59?
500
What is 360 divisible by?
What is 2, 3, 5, and 10?
500
What is the prime factorization of 147?
What is 3 x 7 x 7? 3 times seven to the second power.