whole numbers dividing 60

[sufinaz]

how many whole positive numbers you can think of divides 60, answers whole number again?

 

[MarkFL]

Can you list all the factor pairs?

 

[pka]

\(\displaystyle 60=2^2\cdot 3\cdot 5\).

 

[sufinaz]

1,2,3,5,4,6,10,15,,20,30,60 that's all I guess but there is 12 number, is that what it's asking?

 

[Deleted member 4993]

1,2,3,5,4,6,10,15,,20,30,60 that's all I guess but there is 12 number, is that what it's asking?

You missed 12

 

[sufinaz]

is the answer 13 than?

 

[Deleted member 4993]

is the answer 13 than?

No - count again!

 

[sufinaz]

oh dear, thanks

 

[pka]

is the answer 13 than?

No the answer is 12.
Let me give you the general rule:
Write the number in factored form, like \(\displaystyle N=(p_1)^{n_1}\cdot(p_2)^{n_2}\cdot(p_3)^{n_3}\cdots(p_k)^{n_k}\) where each \(\displaystyle p_j\) is a prime factor and each \(\displaystyle n_j\in\mathbb{Z}^+~\&~n_j\ge 1\)
then the number of divisors of \(\displaystyle N\) is \(\displaystyle (n_1+1)\cdot(n_2+1)\cdot(n_3+1)\cdots(n_k+1)\)