**174**= 2 x 3 x 29.

**174**is a divisor of 59

^{2}- 1.

**174**is the number of twin primes among the first thousand primes.

**174**= 7

^{2}+ 5

^{3}.

**174**is the smallest number that can be written as the sum of four positive distinct squares in six ways.

In 1978, Landon Noll and Laura Nickel used a CDC Cyber 174 to prove that the Mersenne number M

_{21701}is a prime number.Source: Prime Curios!