What is a number that can only be divided by itself?

A prime number is an integer, or whole number, that has only two factors — 1 and itself. Put another way, a prime number can be divided evenly only by 1 and by itself. Prime numbers also must be greater than 1. For example, 3 is a prime number, because 3 cannot be divided evenly by any number except for 1 and 3.

What will be the remainder when a number is divided by itself?

Let us look at the division process. We see that the remainder is 0 in both the cases. Thus, when a number is divided by its factor, the remainder is 0(zero).

Why is any number divided by 1 is itself?

It appears that when we are dividing by 1, it equals the number we are dividing. From this, we can create this rule: Any number divided by 1 equals itself. We just have to make sure that when dividing any number by 1, we remember the answer is always itself.

Which number is always divided by 2?

Divisibility by 2, 4, and 8 All even numbers are divisible by 2. Therefore, a number is divisible by 2 if it has a 0, 2, 4, 6, or 8 in the ones place. For example, 54 and 2,870 are divisible by 2, but 2,221 is not divisible by 2.

Is 8 a prime number?

No, 8 is not a prime number. The number 8 is divisible by 1, 2, 4, 8. For a number to be classified as a prime number, it should have exactly two factors. Since 8 has more than two factors, i.e. 1, 2, 4, 8, it is not a prime number.

Is the only whole number which when divided by itself gives a quotient equal to itself?

Answer: When any number is divided by 1, we always get the number itself as the quotient. In other words, any whole number (other than zero) divided by itself gives 1 as the quotient.

Is the only prime number?

Prime numbers are the numbers that have only two factors, that are, 1 and the number itself. Consider an example of number 5, which has only two factors 1 and 5….Prime Numbers vs Composite Numbers.

Prime Numbers	Composite Numbers
2 is the smallest and the only even prime number	4 is the smallest composite number

Which is not divisible by 2?

Odd numbers are those numbers which are not divisible by 2. They have 1, 3, 5, 7, 9 at their unit place. Odd numbers leave 1 as a remainder when divided by 2.

What are the prime numbers that can be divided by 2?

Updated February 21, 2017 | Factmonster Staff. A prime number can be divided, without a remainder, only by itself and by 1. For example, 17 can be divided only by 17 and by 1. Some facts: The only even prime number is 2. All other even numbers can be divided by 2.

How many even numbers can be divided by 2?

All other even numbers can be divided by 2. If the sum of a number’s digits is a multiple of 3, that number can be divided by 3. No prime number greater than 5 ends in a 5. Any number greater than 5 that ends in a 5 can be divided by 5.

What is a number that is divided by 5?

Any number greater than 5 that ends in a 5 can be divided by 5. Zero and 1 are not considered prime numbers. Except for 0 and 1, a number is either a prime number or a composite number. A composite number is defined as any number, greater than 1, that is not prime.

How many numbers between 1-8 are divisible by 1?

Firstly, you have to find the top left number, only 4 numbers are divisible between 1-8: 2, 4, 6 and 8. Then go across the problem. Among these, 2 is only divisible by 1 and itself, meaning that either the number 2 is divided by or the answer, will have to be 2 as well.