How many numbers are there between 10 and 30?

Hence, the prime numbers between 10 and 30 are 11, 13, 17, 19, 23 and 29. So total there are 6 prime numbers between 10 and 30.

What number has exactly 2 factors?

prime number
A prime number is a number with exactly two factors. A prime number is only divisible by 1 and itself. Another way to think of prime numbers is that they are only ever found as answers in their own times tables. 11 is a prime number because the only factors of 11 are 1 and 11 ( 1 × 11 = 11 ).

How many numbers less than 50 have exactly 2 factors?

R D Sharma – Mathematics 9 are number having only 2 factors it is also called as prime numbers.

What number has exactly 10 factors?

2048 is the smallest number with exactly 10 proper divisors.

What is the sum all prime numbers between 10 and 30?

There are Six prime numbers are present which is 11,13,17,19,23,29. So, sum of all prime numbers between 10 and 30 is 112.

What is the prime and composite numbers between 10 and 30?

The prime and composite numbers between 10 and 30 as follows: Prime number :- 11, 13, 17, 19, 23, 29. Composte number- 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28.

Why is 30 not a prime number?

The number 30 is divisible by 1, 2, 3, 5, 6, 10, 15, 30. For a number to be classified as a prime number, it should have exactly two factors. Since 30 has more than two factors, i.e. 1, 2, 3, 5, 6, 10, 15, 30, it is not a prime number.

What numbers less than 100 have exactly 4 factors?

There are 32 numbers from 1 to 100 with 4 factors.

Which number has exactly 3 factors?

We know that the numbers between 1 and 100 which have exactly three factors are 4, 9, 25 and 49. Factors of 4 are 1, 2 and 4. Factors of 9 are 1, 3 and 9.

How many factors does 10 have?

4 factors
The factors of 10 are 1, 2, 5, 10. Therefore, 10 has 4 factors.

How do you find the factors of 30?

We can find the pair factors of number 30, by multiplying two numbers in a pair to get the original number as 30, such as; 1 × 30 = 30. 2 × 15 = 30. 3 × 10 = 30. 5 × 6 = 30. Therefore, Factors Of 30. 1, 2, 3, 5, 6, 10, 15 and 30.

How many numbers have exactly 3 factors?

The numbers that have exactly 3 factors are squares of prime numbers. The factors must be prime, since any non-prime factor would itself have factors, meaning we’d exclude for example 2 x 3 x 4 = 24 since 4 is 2 x 2, so 24 really has 4 factors.

What are the factors of 30 in pairs?

Factors Of 30 in Pairs 1 1 × 30 = 30 2 2 × 15 = 30 3 3 × 10 = 30 4 5 × 6 = 30

How many remainders are there in 30?

Hence, the factors of real number 30 are 1, 2, 3, 5, 6, 10, 15 and 30. If we notice here, each factor acts as the divisor of 30. Hence, you can see, in the above operation performed, there are no remainders left. Every integer number other than 0 and 1 have their factors. The factors of number 30 are 1, 2, 3, 5, 6, 10, 15 and 30.