Prime Factor Analysis - Casio fx9750G User Manual

Program for

Prime Factor Analysis

Description
Produces prime factors of arbitrary positive integers
For 1 <
Prime numbers are produced from the lowest value first. "END" is displayed at the end
of the program.
(Overview)
m is divided by 2 and by all successive odd numbers (
for divisibility.
Where
+ 1 <
m
i
Example
[1]
119 = 7 × 17
[2]
440730 = 2 × 3 × 3 × 5 × 59 × 83
[3]
262701 = 3 × 3 × 17 × 17 × 101
Preparation and operation
• Store the program written on the next page.
• Execute the program as shown below.
Step Key operation
PROGRAM SHEET
m < 10 10
d is a prime factor, m
d
.
Display
= 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 check
Display
376