two. 70 and 170.
There are 34 prime numbers under 140.
number of prime numbers which are in the seven times tables: 1 prime numbers are in the seven times tables: 7 only
Seven
Seven of them.
The number of combinations of six numbers that can be made from seven numbers will depend on if you can repeat numbers. In all there are over 2,000 different numbers that can be made.
19 numbers.
Revise your question, it makes no sence.
Seven
The 3 digit numbers under 500 are 100 through 499.
25
3,333
4 of them.