Numerology is the study of deciphering the secret meanings of numbers.

She is interested in numerology and wants to know her destiny.

A negative number refers to a number less than zero.

A positive number is a number greater than zero.

Please adjust the frequency of this radio.

After the earthquake, the number of dead increased rapidly.

He thought for a few seconds before giving an answer.

A composite number, unlike a prime number, is represented by the product of two or more natural numbers.

He used his alphanumeric skills to create a computer program.

Saburo is my best friend.