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gives primefactors of 20

Examplefactor 20

gives prime factors of all the numbers

Examplefactor 30 50 60

Output:

36: 2 2 3 3

(36 is factored as 2 × 2 × 3 × 3)

Examplefactor 36

Output:

37: 37

(Since 37 is a prime number, the output is the number itself.)

Examplefactor 37

Output:

56: 2 2 2 7
75: 3 5 5
98: 2 7 7

(This calculates prime factors for multiple numbers in one command.)

Examplefactor 56 75 98

Output:

123456: 2 2 2 2 2 2 3 643

(Shows how a large number can be broken down into its prime factors.)

Examplefactor 123456

Output:

987654321: 3 3 17 17 379721

(The factor command can handle large numbers efficiently.)

Examplefactor 987654321

Output:

10: 2 5
11: 11
12: 2 2 3
13: 13
14: 2 7
15: 3 5
16: 2 2 2 2
17: 17
18: 2 3 3
19: 19
20: 2 2 5

(This factors numbers from 10 to 20.)

Examplefor i in {10..20}; do factor $i; done

Then view the file:

cat factors.txt

Examplefactor 100 200 300 > factors.txt

(Reads numbers from numbers.txt and factors them.)

Examplecat numbers.txt | xargs factor

(Save as factor_script.sh, make it executable with chmod +x factor_script.sh, and run it.)

Example#!/bin/bash
echo "Enter a number:"
read num
factor $num

Output (for 97):

Prime

Examplefactor 97 | awk '{if (NF==2) print "Prime"; else print "Not Prime"}'

Displays the prime factors of a number.

Examplefactor 12

factor's Examples