The product of a pair of 2-digit positive integers is 630 . How many such pairs are there?
Answer Choices
A. 2
B. 3
C. 4
D. 5
E. 6
The product of a pair of 2-digit positive integers is 630 . How many such pairs are there?
Answer Choices
A. 2
B. 3
C. 4
D. 5
E. 6