Show:
Factors
Multiples
Prime/Composite?
Prime Factorization
LCM and HCF
100
What are the factors of the number 20?
1, 2, 4, 5, 10, 20
100
Find the first 3 multiples of the number 20.
20, 40, 60...
100
Prime or Composite: 28
28 is COMPOSITE (factors = 1, 2, 4, 7, 14, 28)
100

What is the prime factored form of 46

46 = (2)(23)

100

What is the HCF of 42, 48, and 54?

HCF is 6

200
True or False: 4 is a factor of 48.
True
200

What is a MULTIPLE?

Multiples are the numbers we find when we SKIP COUNT.

Multiples are the numbers you get when you multiply a certain number by an integer

200

Prime or Composite: 2039

23 is PRIME (Factors = 1, 2039)

200

What is the prime factored form of 972?

972 = (2 2 )⋅( 3 5)

200

What is LCM of 16, 18, and 24?

284 x 7 = 1988

300

What are the factors of the number 72?

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72

300
True or False: 4 is a multiple of 20.
FALSE. 4 is a FACTOR of 20.
300
What is a PRIME number?
A prime number has only 2 factors, 1 and itself
300


What is the prime factored form of 16900?


38025 = (22)(52)(132)

300

What are the HCF and LCM of 8, 18, and 26?

HCF = 2, LCM = 936

400
What are the factors of 1026?

1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 114, 171, 342, 513, 1026

400

Find the 11th to 14th multiple of 19.

209, 228,247,266

400
Prime or Composite: 33
33 is composite (factors = 1, 3, 11, 33)
400

What is the prime-power factorization of 4620?

4620 = 2 2 ⋅ 3 ⋅ 5 ⋅ 7⋅ 11

400

What are the HCF and LCM of 336 and 54?

HCF is 6 LCM is 3024

500

What are the factors of the number 1026?

1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 114, 171, 342, 513, 1026

500

What is the LCM of 28, 44, and 132?

The LCM of 28, 44, and 132 is 924.

500
The ONLY even prime number is ______
2
500

What is the prime-power factorization form of 845

845 = (5)(132)

500

Find the H.C.F. and L.C.M. of the following pairs of numbers. 145 and 232

HCF =29 LCM 1160