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What are Prime Numbers?

What are Prime Numbers?

Assessment

Interactive Video

Mathematics, Science

10th Grade - University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video tutorial explains what prime numbers are, defining them as whole numbers greater than one with exactly two factors: one and itself. It reviews the concepts of whole numbers and factors, providing examples to clarify these terms. The tutorial introduces a strategy to identify prime numbers by asking two key questions and demonstrates this with examples. It also discusses non-prime numbers, explaining why certain numbers do not qualify as prime. The video concludes with practice exercises and a vocabulary review to reinforce the concepts covered.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a prime number?

A number with a decimal

A number that is divisible by 2

A whole number greater than one with exactly two factors

A number with more than two factors

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a prime number?

4

8

6

5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is the number 2 considered a special prime number?

It is not a whole number

It has more than two factors

It is the largest prime number

It is the only even prime number

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following numbers is NOT a prime number?

11

9

7

13

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the sum of the digits of 57, and why is it relevant?

15; it shows 57 is divisible by 5

10; it shows 57 is a prime number

12; it shows 57 is divisible by 3

9; it shows 57 is a whole number

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following statements is true about whole numbers?

They can have decimals

They are always prime numbers

They can have fractions

They are written without fractions or decimals

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are factors?

Numbers that are subtracted

Numbers that are divided

Numbers that are added together

Numbers that are multiplied

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