Exponents
2-5
An exponent is used to express a
number that is a product of
factors that are the same.
20 1
21 2
22 2 2 4
23 2 2 2 8
24 2 2 2 2 16
25 2 2 2 2 2 32
26 2 2 2 2 2 2 64
27 2 2 2 2 2 2 2 128
28 2 2 2 2 2 2 2 2 256
Study these examples.
26 2 2 2 2 2 2
Remember:An exponent
tells how many times to use
the baseas a factor.
42 4 4
42 16
exponential form standard form
Read 4^2 as:
“four squared,”
“four to the second power,” or
“the second power of four.”
53 5 5 5
53 125
exponential form standard form
Read 5^3 as:
“five cubed,”
“five to the third power,” or
“the third power of five.”
Read 2^6 as:
“two to the sixth power,” or
“the sixth power of two.”
base
exponent
Write each product in exponential form.
- 7 7 7 7 2. 3 3 3 3 3 3. 9 9 9
- 11 11 5. 15 15 15 15 6. 100 100 100
- 8 8 8 8 8 8 8. 6 6 6 6 6 6 6 6
- 2 2 2 2 2 2 2 10. 5 5 5 5 5
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