AMH - g_p3.39_low

A whole number is a if it is larger than $1$ and the only whole numbers that divide it are $1$ and itself.

Which of the numbers from $1$ to $10$ are prime?

Solution

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1

$1$ is not prime since it is not larger than

1

$1$

2

$2$ is prime since only

1

$1$ and

2

$2$ divide

2

$2$

3

$3$ is prime since only

1

$1$ and

3

$3$ divide

3

$3$

4

$4$ is not prime since

2

$2$ divides

4

$4$

5

$5$ is prime since only

1

$1$ and

5

$5$ divide

5

$5$

6

$6$ is not prime since

2

$2$ divides

6

$6$

7

$7$ is prime since only

1

$1$ and

7

$7$ divide

7

$7$

8

$8$ is not prime since

2

$2$ divides

8

$8$

9

$9$ is not prime since

3

$3$ divides

9

$9$

10

$10$ is not prime since

2

$2$ divides

10

$10$

Is this a prime number?

${}$

Try again! This number can be divided by ${}$ .This number is prime.

Try again! Prime numbers are greater than $1$ so $1$ is not prime.