13
1, 7, 13, 19, 91, 133, 247, 1729 The prime factors are 7, 13, 19
The sum of 6 and 7 is found by adding the two numbers together, which equals 13. The product of 6 and 7 is found by multiplying the two numbers, which equals 42. Therefore, the difference between the two is 42 - 13 = 29.
15. It is the difference between 5 and 20.
13 + 7 = 20 13 - 7 = 6
The difference between 7 and 3 is 4.
7
A "difference" is either the result of a subtraction (the difference between 7 and 5 is 7 minus 5), or its absolute value (so that the difference between 7 and 5 is the same as the difference between 5 and 7).
-5
The time difference between 7:38 am and 2:13 pm is 6 hours and 35 minutes.
37. The difference between the 1st and 2nd term is 5, the difference between the 2nd and 3rd term is 6, the difference between the 3rd and 4th term is 7, etc. The next term is +9 from the last term given.
14