Question 955487

Find all the numbers less than 60 that are prime and have a remainder of 3 when they are divided by 7? Should have three answers but we only come up with two.

Prime numbers less than 60: 2,3,5,7,11,13,17,23,29,31,37,41,43,47,54,59.  
 17/7 = 2.43
*19/7 = 2.71 round up = 3
*23/7 = 3.28 round = 3
 29/7 = 4.14
 31/7 = 4.42

What are we doing wrong.

Thank you,
t2newark
<pre>The easiest way to approach this is to add 3 to each MULTIPLE of 7 and then choose all those that are PRIME. 
For example, 7(1) + 3 = 10 (Composite). After going through all the multiples of 7 that are less than 60,
you should get the 3 primes: {{{highlight_green(system(17,31_and,59))}}}