41 I believe
1269
1 + 2 + 7 + 11 + 13 + 14 + 22 + 26 + 77 + 91 + 143 + 154 + 182 + 286 + 1001 + 2002 = 4,032
7.15
7.9444
20
x-7
The sum of 11 and 7 is 18.
the sum of 7 and 23 is 30..
The GCF is 7.
Sum(not div by 7) = Sum(all) - Sum(div by 7) Now the sum of an AP is Sn = n/2 (first + last) where n is the number of terms Sum(All) = 10000/2 (1 + 10000) = 50005000 Sum(div by 7) = (9996/7)/2 (7 + 9996) = 1428/2 (10003) = 7142142 Sum(not div by 7) = Sum(all) - Sum(div by 7) = 50005000 - 7142142 = 42 862 858
The product of 7 and 60 is 420. The sum of 7 and 60 is 67.
The sum of 7 and 5 is 12