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Answer
Success!
We are done. 100 converted from decimal to Base 5 notation equals 4005.

↓Steps Explained:↓

Convert 100 from decimal to Base 5

(base 5) notation:

Power Test

Raise our base of 5 to a power

Start at 0 and increasing by 1 until it is >= 100

50 = 1

51 = 5

52 = 25

53 = 125 <--- Stop: This is greater than 100

Since 125 is greater than 100, we use 1 power less as our starting point which equals 2

Build Base 5 notation

Work backwards from a power of 2

We start with a total sum of 0:


52 = 25

The highest coefficient less than 4 we can multiply this by to stay under 100 is 4

Multiplying this coefficient by our original value, we get: 4 * 25 = 100

Add our new value to our running total, we get:
0 + 100 = 100

This = 100, so we assign our outside coefficient of 4 for this digit.

Our new sum becomes 100

Our Base 5 notation is now equal to 4


51 = 5

The highest coefficient less than 4 we can multiply this by to stay under 100 is 1

Multiplying this coefficient by our original value, we get: 1 * 5 = 5

Add our new value to our running total, we get:
100 + 5 = 105

This is > 100, so we assign a 0 for this digit.

Our total sum remains the same at 100

Our Base 5 notation is now equal to 40


50 = 1

The highest coefficient less than 4 we can multiply this by to stay under 100 is 1

Multiplying this coefficient by our original value, we get: 1 * 1 = 1

Add our new value to our running total, we get:
100 + 1 = 101

This is > 100, so we assign a 0 for this digit.

Our total sum remains the same at 100

Our Base 5 notation is now equal to 400


Final Answer

We are done. 100 converted from decimal to Base 5 notation equals 4005.
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