How to calculate multiples of two numbers?

Question

Mathematics

Hello everyone, I completely forgot math :)
Task: how to calculate multiples of two numbers?
Namely, for the numbers 1920 and 600.
Example: 60 is divisible by both 1920 and 600.

Answer 1

Factor
1920 = 2 * 2 * 2 * 2 * 2 * 2 * 2 * 3 * 5
600 = 2 * 2 * 2 * 3 * 5 * 5
Total factors: 2, 2, 2, 3,
5 numbers of them, multiplying? The deuce can be taken from zero to 3 times, i.e. 4 ways. For 3 and 5 - two ways each (to take or not to take), total 4 * 2 * 2 = 16 numbers, including the number 1 (we take all factors 0 times).
These numbers are: 1, 2, 2*2, 2*2*2, 3, 3*2, 3*2*2, 3*2*2*2, 5, 5*2, 5*2*2, 5*2*2*2, 3*5, 3*5*2, 3*5*2*2, 3*5*2*2*2.

Answer 2

this is 9600
9600/1920=5
9600/600=16
factorize it into prime factors, multiply the larger number by those prime factors that are absent in b. number, but is in m.
To check, divide by GCD (greatest common divisor.)
Find. GCD:
pointing to 13 and 17
17, 13, 4, 1, 0
prev. before 0 - 1