Number Theory

Front

27 written as powers of a prime is _______

Back

3 x 3 x 3 (or 3^3)

Front

What is the HCF of 16 and 32?

Back

16

Front

Which of the following is the LCM of 12 and 8?

Back

48

Front

Find the smallest multiple of 13 which is greater than 1000.

Back

1001

Front

Round 234.78 to the nearest whole number.

Back

235

Front

What is a prime number?

Back

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

Front

What is a composite number?

Back

A composite number is a natural number greater than 1 that is not prime, meaning it has divisors other than 1 and itself.

Front

Define the term 'multiple'.

Back

A multiple of a number is the product of that number and an integer.

Front

Define the term 'factor'.

Back

A factor of a number is an integer that can be multiplied by another integer to produce that number.

Front

What is the difference between HCF and LCM?

Back

HCF (Highest Common Factor) is the largest number that divides two or more numbers, while LCM (Lowest Common Multiple) is the smallest number that is a multiple of two or more numbers.