Q: What multiplication problems equal 5?

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How about: 5*9 = 45 as one example

They are: 1*15 = 15 and 5*3 = 15

1 x 50, 2 x 25, 5 x 10.10x5=50

As the product of its prime factors: 3*3*5 = 45

As many as desired. An infinite number is possible.

Related questions

How about: 5*9 = 45 as one example

They are: 1*15 = 15 and 5*3 = 15

There are 6 multiplication problems that equal 15. 5 x 3 -5 x 3 -3 x 5 15 x 1 -15 x 1 -1 x 15 what about 1/2 x 30 ?

As a product of its prime factors: 2*2*5 = 20 or as 22*5 = 20

22x111x21x222x11

1x82x4

1 x 245, 5 x 49, 7 x 35.

1 x 475, 5 x 95, 19 x 25.

With positive whole numbers, there is only one. 1 x 5

Infinite

1 x 85, 5 x 17, 17 x 5, 85 x 1.

1 x 50, 2 x 25, 5 x 10.10x5=50