The Number 75: Properties and Meanings
Prime Factors of
75=
3x
5x
5.
75 can be
Partitioned 38 times with each term no larger than
2.
75 can be
Partitioned 507 times with each term no larger than
3.
75 is a
Nonagonal Number.
75 is a
26-gonal Number.
75 is a
Pentagonal Pyramidal Number.
The
Chemical Element Rhenium has an atomic number of
75.
The
Chemical Element Arsenic has one
Stable Isotope. It has
75 neutrons.
The Year 75 AD
In the year
75 AD the Welsh town of Caerwent was founded by the Romans.
In the year
75 AD Suetonius a Roman historian was born.
