# First Prime Number

There are four prime numbers written in ascending order. The product of the first three is 385 and that of the last three is 1001. The first prime number is

- 5
- 7
- 11
- 17

**Answer: (1) 5
Explanation:-
**Let be the prime numbers are A, B, C and D

According to the question,

ABC = 385

BCD = 1001

ABC/BCD = 385/1001

A/D = 5/13

Hence, the first is 5.