Prime Factorization Terms and Divisibility Rules 2, 5, 10 Take 2

Front

What is prime factorization?

Back

Prime factorization is the process of expressing a number as the product of its prime factors.

Front

What are prime numbers?

Back

Prime numbers are natural numbers greater than 1 that have no positive divisors other than 1 and themselves.

Front

What is the divisibility rule for 2?

Back

A number is divisible by 2 if it ends with an even digit (0, 2, 4, 6, or 8).

Front

What is the divisibility rule for 5?

Back

A number is divisible by 5 if it ends with a 0 or 5.

Front

What is the divisibility rule for 10?

Back

A number is divisible by 10 if it ends with a 0.

Front

Is 10,746 divisible by 5?

Back

No, because it ends in an even number (6).

Front

Which of the following numbers is NOT divisible by 10: 40, 1,000, 10, 25?

Back

25 is NOT divisible by 10.

Front

Can the number 103 be divided evenly by 2?

Back

No, because it ends with an odd digit (3).

Front

What is an even number?

Back

An even number is any integer that is exactly divisible by 2.

Front

What is an odd number?

Back

An odd number is an integer that is not exactly divisible by 2.