Oh, what a happy little question! The product of the first 30 counting numbers is a big number, but we can handle it. It's called the factorial of 30, which is written as 30! and equals 265252859812191058636308480000000. Just imagine all the beautiful possibilities that number holds!
18
Counting 0 as a number, it's 20. Not counting 0, it's 30.
30
If you are including 10 and 30 there are 11 even numbers. If you are not counting 10 and 30 there are 9 even numbers between 10 and 30.
The answer will depend on how many digits there are in each of the 30 numbers. If the 30 numbers are all 6-digit numbers then the answer is NONE! If the 30 numbers are the first 30 counting numbers then there are 126 combinations of five 1-digit numbers, 1764 combinations of three 1-digit numbers and one 2-digit number, and 1710 combinations of one 1-digit number and two 2-digit numbers. That makes a total of 3600 5-digit combinations.
18
153
Counting 0 as a number, it's 20. Not counting 0, it's 30.
The product of the first three prime numbers (2, 3, and 5) is 30.
30
None of them. All counting numbers are either odd or even.
None. All counting numbers are even or odd.
30 - 31 = -1
The first three prime numbers are 2,3, and 5. Their product is 2x3x5 =30. Note, 1 is not considered a prime, so we do not use it.
To find the two-digit counting numbers less than 30, we consider the numbers from 10 to 29, which gives us 20 two-digit numbers. The multiples of 20 that are two-digit numbers are 20. Since 20 is already included in the count of two-digit numbers less than 30, the total remains 20. Therefore, there are 20 two-digit counting numbers that are either less than 30 or a multiple of 20.
The natural numbers are the counting numbers. Therefore, the natural numbers less than 31 are the numbers from 1 to 30.
If you are including 10 and 30 there are 11 even numbers. If you are not counting 10 and 30 there are 9 even numbers between 10 and 30.