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.
It is larger than either number!




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.
It is smaller than either number!

Factors of 26:______________________

Factors of 39: ______________________

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:________