Factors
List all the factors of 18.
1, 2, 3, 6, 9, and 18
List the next 3 multiples of 5, starting with 10. Hint: Skip count.
10, 15, 20.
What is the GCF of 12 and 21?
3
What is the LCM of 3 and 7?
21
Prime factorization for 32.
2x2x2x2x2
List all the common factors of 12 and 20.
1, 2, and 4
List 3 multiples of the number 4.
See Ms. Arroyo for answer
What is the GCF of 24 and 20?
4
What is the LCM of 4 and 9?
36
Prime factorization for 40.
2x2x2x5
List all the factors of 36.
1, 2, 3, 4, 6, 9, 12, 18, 36
What is one multiple of 2 and 6?
6, 12, 18, 24, 30, 36, 42, 48
What is the GCF of 28 and 35?
7
What is the LCM of 9 and 7?
63
Prime factorization for 76.
2x2x19
List all the common factors of 12 and 18.
1, 2, 3, and 6
12, 15, 18, and 21 are multiples of what number?
3
What is the GCF of 50, 35, and 15?
5
What is the LCM of 2, 3, and 5?
30
Prime factorization for 60.
2x2x3x5
List all the factors of 42.
1, 2, 3, 6, 7, 14, 21, and 42.
List all the common multiples of 6 and 8 that are less than 50.
24 and 48.
What is the GCF of 64 and 80?
16
What is the LCM of 20 and 12?
60
Prime factorization for 84.
2x2x3x7