Divisibility Flashcard

Front

What does it mean for a number to be divisible by another number?

Back

A number is divisible by another number if you can divide it without leaving a remainder.

Front

Is every even number divisible by 2?

Back

Yes, every even number can be divided by 2 without a remainder.

Front

What is the largest number that can divide both 36 and 72?

Back

The largest number that can divide both 36 and 72 is 36.

Front

Is 105 divisible by 2?

Back

No, 105 is not divisible by 2 because it is an odd number.

Front

What is the rule for a number to be divisible by 3?

Back

A number is divisible by 3 if the sum of its digits is divisible by 3.

Front

Is 40,500 divisible by 6?

Back

Yes, 40,500 is divisible by 6.

Front

What is the divisibility rule for 5?

Back

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

Front

Is 2,385 divisible by 10?

Back

No, 2,385 is not divisible by 10 because it does not end in 0.

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Front

What does it mean if a number is a prime number?

Back

A prime number is a number greater than 1 that has no positive divisors other than 1 and itself.