Understanding Factorials - Math

! is the symbol for factorial, which means the product of the whole numbers less than the given number.

Thus, .

By definition, .

The factorial sign (!) just tells us to multiply that number by every integer that leads up to it. So, can also be written as:

To make this easier for ourselves, we can cancel out the numbers that appear on both the top and bottom:

! is the symbol for factorial, which means the product of the whole numbers less than the given number.

Thus, .

By definition, .

The factorial sign (!) just tells us to multiply that number by every integer that leads up to it. So, can also be written as:

To make this easier for ourselves, we can cancel out the numbers that appear on both the top and bottom:

The factorial sign (!) just tells us to multiply that number by every integer that leads up to it. So, can also be written as:

To make this easier for ourselves, we can cancel out the numbers that appear on both the top and bottom:

! is the symbol for factorial, which means the product of the whole numbers less than the given number.

Thus, .

By definition, .

The factorial sign (!) just tells us to multiply that number by every integer that leads up to it. So, can also be written as:

To make this easier for ourselves, we can cancel out the numbers that appear on both the top and bottom:

! is the symbol for factorial, which means the product of the whole numbers less than the given number.

Thus, .

By definition, .