Week 5 Vocab Flashcard - Prime and Composite Numbers

Front

Numbers with only factors 1 and itself

Back

Prime Number

Answer explanation

A number with only 2 factors, 1 and itself, is a PRIME number

Front

Numbers multiplied to find a product

Back

Factors

Answer explanation

Factors are numbers that are multiplied together to get another number (your product)

Front

True statements about 'One':

Back

One is neither prime nor composite.

Answer explanation

1 and 0 are NOT prime or composite. They are NEITHER.

Front

A number with 3+ factors

Back

Composite Number

Answer explanation

A composite number has 3 or more factors.

Front

Are all even numbers composite?

Back

No

Answer explanation

2 is an even number. 2 is also a prime number.

Front

Are all odd numbers prime?

Back

No

Answer explanation

Some odd numbers are prime, but not all. Numbers like 15, 21, and 27 are composite numbers.

Front

Answer to a multiplication problem

Back

Product

Answer explanation

The product is the answer to a division problem.

Front

Ability to be divided without remainder

Back

Divisibility

Answer explanation

Divisibility is the ability to be divided by a number without having a remainder.

Front

Last digit is 5, divisible by:

Back

5

Answer explanation

Numbers that end in 0 or 5 are always divisible by 5

Front

Divisible by 2 and 3 implies divisibility by:

Back

6

Answer explanation

Numbers that are divisible by 2 and 3 are also divisible by 6.