Q: Name a number between 1 and 20 that has 3 factor pairs?

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Prime numbers have one factor pair. Composite numbers have two or more pairs. (6,8) and (4,12) are two different factor pairs for 48.

200,205, 10

(30,1)(15,2)(10,3)(6,5)

a prime factor

5 and 10 5 and 15 5 and 20

Related questions

name factors pairs between 3000 and 5000

Prime numbers have one factor pair. Composite numbers have two or more pairs. (6,8) and (4,12) are two different factor pairs for 48.

200,205, 10

(30,1)(15,2)(10,3)(6,5)

8 and 4 16 and 2

1 and 16 2 and 8 4 and 4

There are 3 pairs in total 1) 1 and 81 2) 3 and 27 3) 9 and 9

1, 12, 6, and 2.

a prime factor

One

Despite the name, centipedes can have a varying number of legs from under 20 to over 300. They always have an odd-number of pairs (for example 17 or 21 pairs instead of 20 or 26 pairs)

5 and 10 5 and 15 5 and 20