The answer is 62. 6+2+8. 6 x 2=12. it could be 26 or 62. But becuase it's inbetween 30 and 60, it has to be 62.
88
2 and 6
19
1
-109
63
52 is a number whose digits have a product of 10.
88
2 and 6
Try the different numbers - there are only 11 after all - and multiply their digits. Or analyze the factors of the number 21.
12 and 2412 and 2412 and 2412 and 24
19
There are two numbers that satisfy the criteria. 38 and 83
It can have up to 5 digits.
81
When using significant digits, the product has only the number of significant digits as the lowest number in the factors. "20" has two significant digits and "310" has three. Therefore, the product has to have two significant digits. 310 × 20 = 6200 6200 already has two significant digits.
The number is 83.