There are 299.
299
128!
There are 67.
There are seven multiples of six that fall between one and 50: 12, 18, 24, 30, 36, 42, 48.
There are 457 such numbers.
13
25
They are all multiples of 1.
It depends on the font.
All the multiples of 4 are leap years, except for 1800 and 1900 (2000 is a leap year). I'll leave the counting to you.
There are 199 multiples of five that fall between 1,001 and 1,999.
There are 30 multiples of 30 that fall between 100 and 1,000.
There are 30 multiples of 30 between 100 and 999.
There are 511 multiples of five that fall between 6,372 and 8,926.
There are 83 multiples of six that fall between 500 and 1,000.
There are 3,333 multiples of three that fall between 1 and 10,000.
297
there are many sizes, generally 2000 to 5000 gallons