Calculate φ(4)
This is known as the totient
Calculate factors for 4
Factors for 4 are 1,2,4
Factors < 4 with 1 as common factor
| # | Factor List | Matching Factors | Totient List? |
|---|---|---|---|
| 1 | 1 | 1 | Y |
| 2 | 1,2 | 1,2 | N |
| 3 | 1,3 | 1 | Y |
Build totient list
1,3
Final Answer
φ(4) = 2
Calculate φ(4)
This is known as the totient
Factors for 4 are 1,2,4
| # | Factor List | Matching Factors | Totient List? |
|---|---|---|---|
| 1 | 1 | 1 | Y |
| 2 | 1,2 | 1,2 | N |
| 3 | 1,3 | 1 | Y |
1,3
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