Amicable numbers refer to a pair of natural numbers that have a special relationship in number theory, a branch of mathematics.

What is the play count of this video?

In Japan, 4 and 9 are considered unlucky numbers.

He claims to be a warrior for freedom of expression, but in reality, he's just someone who uses derogatory words.

He likes to take a walk in the park at dusk.

We should always remember the power of Kannon in difficult times.

In this experiment, we will measure the critical Reynolds number.

I am currently reading Numbers.

What is the value below this decimal point?

She is a famous numerologist, and many people seek her advice.