Who did Ptolemy influence and how?

He made contributions to astronomy, mathematics, geography, musical theory, and optics. he came up with the geocentric theory which changed everything because before him, people believed in the heliocentric theory

The steps for calculating the prime factors of a number is similar to the process of finding the factors of any number.
Start dividing the number by the smallest prime number i.e., 2, followed by 3, 5, and so on to find the smallest prime factor of the number.
Again, divide the quotient by the smallest prime number