# Prime Factorization; Function Calculations - Casio fx-82 User Manual

## Prime Factorization

In the COMP Mode, you can factor a positive integer up to 10 digits into
prime factors up to three digits.
To perform prime factorization on 1014
When you perform prime factorization on a value that includes a factor that
is prime number with more than three digits, the part that cannot be factored
will be enclosed in parentheses on the display.
To perform prime factorization on 4104676 (= 2
Any one of the following operations will exit prime factorization result
display.
• Pressing !e(FACT) or =.
• Pressing any of the following keys: . or e.
• Using the setup menu to change the angle unit setting (Deg, Rad, Gra) or
the display digits setting (Fix, Sci, Norm).
Note: • You will not be able to execute prime factorization while a decimal
value, fraction, or negative value calculation result is displayed. Trying to
do so will cause a math error (Math ERROR). • You will not be able to
execute prime factorization while the result of a calculation that uses Pol,
Rec is displayed.

### Function Calculations

For actual operations using each function, see the "Examples" section
following the list below.
π π : π is displayed as 3.141592654, but π = 3.14159265358980 is used for
internal calculations.
e
e
:
is displayed as 2.718281828, but
internal calculations.
sin, cos, tan, sin
angle unit before performing calculations. See
sinh, cosh, tanh, sinh
function from the menu that appears when you press w. The angle unit
setting does not affect calculations. See
r
g
°,
,
: These functions specify the angle unit. ° specifies degrees,
g
and
grads. Input a function from the menu that appears when you perform
the following key operation: 1G(DRG '). See
\$
%
,
: Exponential functions. Note that the input method is different
depending upon whether you are using Natural Display or Linear Display.
See
.
4
log : Logarithmic function. See
ln : Natural logarithm to base
4104676 =!e(FACT)
−1
−1
, cos
, tan
−1
−1
, cosh
e
. See
1014 =
!e(FACT)
e
= 2.71828182845904 is used for
−1
: Trigonometric functions. Specify the
−1
, tanh
: Hyperbolic functions. Input a
.
2
.
5
.
6
E-14
× 1013
2
2
)
.
1
.
3
r