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Challenges Determine whether an integer is square-free

Factor, 108 bytes USING: assocs kernel math math.primes.factors ; IN: s : ? ( n -- ? ) group-factors [ nip 2 < ] assoc-all? ;

posted 2y ago by gifti‭ · edited 2y ago by gifti‭

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#5: Post edited by

gifti‭ · 2022-08-17T17:13:28Z (about 2 years ago)

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# **Factor, 108 bytes**
```
USING: assocs kernel math math.primes.factors ;
IN: s
: ? ( n -- ? ) group-factors [ nip 2 < ] assoc-all? ;
```

# Factor, 108 bytes
```
USING: assocs kernel math math.primes.factors ;
IN: s
: ? ( n -- ? ) group-factors [ nip 2 < ] assoc-all? ;
```

#4: Post edited by

gifti‭ · 2022-08-17T17:12:57Z (about 2 years ago)

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~~# Factor, 108 bytes~~
```
USING: assocs kernel math math.primes.factors ;
IN: s
: ? ( n -- ? ) group-factors [ nip 2 < ] assoc-all? ;
```

# **Factor, 108 bytes**
```
USING: assocs kernel math math.primes.factors ;
IN: s
: ? ( n -- ? ) group-factors [ nip 2 < ] assoc-all? ;
```

#3: Post edited by

gifti‭ · 2022-08-17T17:12:04Z (about 2 years ago)

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```
USING: assocs kernel math math.primes.factors ;
IN: s
: ? ( n -- ? ) group-factors [ nip 2 < ] assoc-all? ;
```

# Factor, 108 bytes
```
USING: assocs kernel math math.primes.factors ;
IN: s
: ? ( n -- ? ) group-factors [ nip 2 < ] assoc-all? ;
```

#2: Post edited by

gifti‭ · 2022-08-17T17:02:10Z (about 2 years ago)
Factor, 108 bytes

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#1: Initial revision by

gifti‭ · 2022-08-17T17:01:15Z (about 2 years ago)

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```
USING: assocs kernel math math.primes.factors ;
IN: s
: ? ( n -- ? ) group-factors [ nip 2 < ] assoc-all? ;
```