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JavaScript, 36 bytes n=>n==(g=d=>--d?(n%d?1:d)*g(d):1)(n) Try it online!
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#1: Initial revision
by
Shaggy
·
2024-10-06T20:21:59Z (about 1 month ago)
# JavaScript, 36 bytes
n=>n==(g=d=>--d?(n%d?1:d)*g(d):1)(n)
[Try it online!](https://tio.run/##BcHBCoAgDADQrwm2YId1CmH6LdJU7DDCxD5/vXfnld9r9GfSOr2Km0QTgSYqkUgT2KaJg@LeQDEwgqF/o88CFfhA9B)