[[35]] is not prime (composite). Want proof? :)

Full prime factorization: [[5]] * [[7]]

Factor pairs:

[[35]] = [[5]] * [[7]]

Proper divisors: [[5]], [[7]]

Primes up to 35: [[2]], [[3]], [[5]], [[7]], [[11]], [[13]], [[17]], [[19]], [[23]], [[29]], [[31]].

[[35]] is not a centered hexagonal number.

The closest centered hexagonal numbers are [[19]] (index # [[3]]) and [[37]] (index # [[4]]).

First 20 centered hexagonal numbers: [[1]], [[7]], [[19]], [[37]], [[61]], [[91]], [[127]], [[169]], [[217]], [[271]], [[331]], [[397]], [[469]], [[547]], [[631]], [[721]], [[817]], [[919]], [[1027]], [[1141]].

[[hz/35]] is closest to [[C#1]] at [[35]] Hz (+18 cents).

Note class: [[C#]], Octave: [[octave/1]].

• [[square]]: 1225

• [[square root]]: 5.9161

• [[cube]]: 42875

• [[cube root]]: 3.2711

• [[natural log]] (ln): 3.5553

• [[base-10 log]] (log10): 1.5441

• [[base-2 log]] (log2): 5.1293