Number Sense

1). (2 points) Find the least common multiple (LCM) of 6 and 8.
The LCM is the smallest number that both 6 and 8 divide evenly into.




Answer: ______

TEAM NO ____ TEAM MEMBERS:

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2). (2 points) Find the greatest common factor (GCF) of 26 and 39.
The GCF is the largest number that divides evenly into both numbers.




Answer:________

3). (2 points)

Answer:________

4). (2 points) How many prime numbers are there between 20 and 40?




Answer:________

5). (2 points) How many 2-digit numbers have a 5 in them?


Answer:________