no
30
5
5
50 - 25 = 25
50 - 25 = 25
1+3+5+7+9=25
25
Subtract 25 from 50.
25 buhgillion
10 + 15 = 25. the tens digit of 25 is 2
Oh, dude, a 25-digit number is called a "quadrillion." So, like, if you ever need to impress someone with your knowledge of big numbers, just drop that little fun fact into the conversation. You're welcome.
They are: 3 13 23 43 53 73 and 83 which as a fraction is 7/25 because there are 25 primes between one and a hundred