Factors, multiples, prime, and composite

Front

What is a composite number?

Back

A composite number is a positive integer that has at least one positive divisor other than one or itself, meaning it has more than two factors.

Tags

CCSS.4.OA.B.4

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers, meaning it has exactly two distinct positive divisors: 1 and itself.

Tags

CCSS.4.OA.B.4

Front

How do you determine if a number is a factor of another number?

Back

A number A is a factor of another number B if B can be divided by A without leaving a remainder.

Tags

CCSS.4.OA.B.4

Front

What is the relationship between factors and multiples?

Back

A factor of a number is a number that divides it evenly, while a multiple of a number is the product of that number and an integer.

Tags

CCSS.4.OA.B.4

Front

List the first five prime numbers.

Back

2, 3, 5, 7, 11.

Tags

CCSS.4.OA.B.4

Front

What is the least common multiple (LCM) of two numbers?

Back

The least common multiple of two numbers is the smallest number that is a multiple of both numbers.

Front

What is the greatest common factor (GCF) of two numbers?

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The greatest common factor of two numbers is the largest number that divides both of them without leaving a remainder.

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How can you find the prime factorization of a number?

Back

To find the prime factorization of a number, divide the number by the smallest prime number until you reach 1, recording the prime factors.

Front

What is an example of a composite number?

Back

An example of a composite number is 4, which has factors 1, 2, and 4.

Tags

CCSS.4.OA.B.4

Front

What is an example of a prime number?

Back

An example of a prime number is 7, which has only two factors: 1 and 7.

Tags

CCSS.4.OA.B.4