Prime Factor Analysis - Casio FX-9750G plus User Manual

Program for
Description
Produces prime factors of arbitrary positive integers
(Overview)
Example
Preparation and operation
• Store the program written on the next page.
• Execute the program as shown below.
Step Key operation
412
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Prime Factor Analysis

m
For 1 < < 10
10
Prime numbers are produced from the lowest value first. "END" is displayed at the
end of the program.
m
is divided by 2 and by all successive odd numbers (
check for divisibility.
d
Where is a prime factor,
d
+ 1 < .
m
i
[1]
119 = 7 × 17
[2]
440730 = 2 × 3 × 3 × 5 × 59 × 83
[3]
262701 = 3 × 3 × 17 × 17 × 101
Display
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PROGRAM SHEET
m m d
= / is assumed, and division is repeated until
i i
–1
Step Key operation
No.
1
d
= 3, 5, 7, 9, 11, 13, ....) to
Display