Factors and Prime Factors of 100

This video tutorial explains how to find all the factors of 100 using a method similar to the rainbow method. It covers the use of divisibility rules to identify factors and demonstrates how to find prime factors. A trick is shared to verify the number of factors by using prime factorization. The video concludes with a summary of the factors and prime factors of 100, and offers additional resources for further learning.

What method is introduced in the video to find factors of 100?

• Ladder method

• Rainbow method

• Tree method

• Grid method

Which number is not a factor of 100 based on divisibility rules?

• 10

• 2

• 3

• 5

What is the rule for a number to be divisible by 4?

• The last digit is 0 or 5

• The sum of the digits is divisible by 3

• The number is even

• The last two digits form a number divisible by 4

How many factors does 100 have?

• 6

• 8

• 9

• 10

What are the prime factors of 100?

• 2, 5, and 10

• 2, 3, and 5

• 3 and 5

• 2 and 5

How can you express the prime factors of 100 using exponents?

• 2^2 * 5^2

• 2^3 * 5^2

• 2^2 * 5^3

• 2^3 * 5^3

What is the trick to verify the number of factors of 100?

• Add the digits of 100

• Divide 100 by its smallest factor

• Subtract the smallest factor from the largest

• Multiply the exponents of the prime factors plus one

What is the sum of the exponents used in the verification trick for factors?

• 4

• 6

• 9

• 5

Which of the following is not a factor of 100?

• 10

• 25

• 30

• 50

What additional resource is mentioned for learning about factors?

• An online course

• A math app

• A downloadable chart

• A math textbook