21 and 5
The factors of 26 are 1, 2, 13 and 26. For them to be common, they need to be compared to another set of factors.
24 and 16 are factors of 48
2 x 13 = 26
19 + 5 + 2
24 & 2 Factors of 48, that is, the 2 numbers that when multiplied together equal 48 are: a) 1 & 48; sum is 49 - nope b) 2 & 24; sum is 26 - ding! ding! ding! ding! c) 3 & 16; sum is 19 - nope d) 4 & 12; sum is 16 - nope e) 6 & 8; sum is 14 - nope
24 and 2 2 X 24=48 2+24=26
1 + 2 + 4 + 13 + 26 + 52 = 98
It is: -12+38 = 26
The answer to this sum is 33. (26 dogs, 7 more dogs come, so there are then 33 dogs)
573
1 + 2 + 13 + 26 + 41 + 82 + 533 + 1066 = 1,764