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PRIME AND COMPOSITE NUMBERS

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Mathematics

4th Grade

Used 1+ times

PRIME AND COMPOSITE NUMBERS
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15 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Is 35 a prime or composite number?

35 is a prime number.

35 is a composite number.

35 is neither prime nor composite.

35 is a natural number.

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Is 33 a prime or composite number?

33 is a prime number.

33 is a composite number.

33 is neither prime nor composite.

33 is a perfect square.

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

How can you determine if a number is prime?

Check if it has any divisors other than 1 and itself by testing divisibility with prime numbers up to its square root.

Check if the number is even; if it is, it is not prime.

Add the digits of the number; if the sum is prime, then the number is prime.

Multiply the number by 2; if the result is prime, then the number is prime.

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Are all odd numbers prime?

Yes, all odd numbers are prime.

No, not all odd numbers are prime. For example, 9 and 15 are odd but composite.

Only some odd numbers are prime, like 3 and 5.

All odd numbers greater than 2 are prime.

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Is 41 a prime or composite number?

41 is a composite number.

41 is a prime number.

41 is neither prime nor composite.

41 is an even number.

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is a composite number?

A natural number greater than 1 that has exactly two positive divisors.

A natural number greater than 1 that has more than two positive divisors.

A natural number that is only divisible by 1 and itself.

A natural number that is less than 1.

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Can a prime number be even?

Yes, the only even prime number is 2.

Yes, all even numbers are prime.

No, prime numbers are always odd.

Yes, but only if they are greater than 2.

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