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Can you find four consecutive prime numbers that add up to 220 ?
 Aug 15, 2015

Best Answer 

 #1
avatar+118587 
+18

Here is the prime numbers under 100.

since yours are consecutive it is probably the 2 before 55 and the two after 55.

See if that works.  (I have not tried it )

 

Yes that does work :))

 Aug 15, 2015
 #1
avatar+118587 
+18
Best Answer

Here is the prime numbers under 100.

since yours are consecutive it is probably the 2 before 55 and the two after 55.

See if that works.  (I have not tried it )

 

Yes that does work :))

Melody Aug 15, 2015
 #2
avatar
+5

Let's divide 220 by 3 we will get 73.3333

So one of the prime no's is 73 and it should be the middle one

previous one is 71

Next one is 76

Check: 71+73+76 = 220

 

N.T

 Aug 16, 2015
 #3
avatar
+10

Sorry i was wrong in the previous abswer as 76 is not prime. Melody you are genious... In all cases they cannot be three numbers because the sum of units must end up with entire tens (220) and the prime numbers end with 3, 7, 9 and 1... The numbers 3+7 =10 and 9+1=10 .. they can never be three numbers. 

N.T

 Aug 16, 2015

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