• [[square]]: 16

• [[square root]]: 2.0000

• [[cube]]: 64

• [[cube root]]: 1.5874

• [[natural log]] (ln): 1.3863

• [[base-10 log]] (log10): 0.6021

• [[base-2 log]] (log2): 2.0000

[[4]] is not prime. Want proof? :)

[[4]] is composite: 2 * 2.

Primes up to 4: 2, 3.

hex(1) is 1.

hex(2) is 7.

hex(3) is 19.

hex(4) is 37.