Question

What is the missing number from the factor rainbow given below?

• A. 37
• B. 42
• C. Cannot be determined
• D. 185

Answer 1

The correct option is A 37

The above factor rainbow represents the factors of 185.

Thus, we can find the factor pairs of 185 as shown below:

$1\times 185=185$
$5\times 37=185$
$37\times 5=185$
​​​​​​​$185\times 1=185$

Thus, the missing factor is 37.