web2.0calc
 
+0  
 

help

+1
1893
5
avatar

Find the sum of the first seven prime numbers that have a units digit of 7.

 Apr 3, 2019

5+0 Answers

 #1
avatar+37146 
+1

7+17+37+47+57+67 +97 + 107=........

 Apr 3, 2019
edited by ElectricPavlov  Apr 4, 2019
 #2
avatar
+2

uhh 27 isn't prime

Guest Apr 3, 2019
 #5
avatar+37146 
+1

Hey...you're correct....neither is 57 !     cheeky

ElectricPavlov  Apr 4, 2019
 #3
avatar
+2

7 + 17 + 37 + 47 + 67 + 97 + 107 =379

EP: Are you getting too old? 27 and 57 are not prime numbers!.

 Apr 3, 2019
 #4
avatar+37146 
+2

Yep.....my birthday was a couple of days ago !   Haha !    Must have finally lost it .....cheeky

ElectricPavlov  Apr 4, 2019

1 Online Users

avatar

Top Users

avatar+37146 ElectricPavlov
avatar+33659 Alan moderator
avatar+14997 asinus moderator
avatar+9673 MaxWong
avatar+3146 admin administrator
avatar+2489 GingerAle
avatar+1895 NotThatSmart
avatar+1839 ABJeIIy
avatar+1768 bader
avatar+1533 parmen
avatar+1439 kittykat

Sticky Topics