Question

There are four prime numbers written in ascending order. The product of the first three is 1001 and that of the last three is 2431. The last number is:

Answer 1

The answer for your question is 13

Answer 2

Answer:

last number(d)= 17

Step-by-step explanation:

Let the 4 numbers be a,b,c,d

Product of first three numbers abc = 1001

Product of last three numbers bcd = 2431

Divide these two numbers

abc/bcd = 1001/2431

b & c are cancelled in the left side

Divide those numbers as suitable and you can divide with 11, 13

You will get as the following

a/d = 7/17

a is the first number

d is the last number

a=7

d=17

Hence the last number is 17

You need to divide asper the options given in the question and I think you know that, sometimes they may give the options in decimal and I think you know to do :)

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