Question

Lareina understands factors, but sometimes she has trouble finding all the factors of a number. What advice would you give to help her find all the factors of a number? Demonstrate by finding all the factors of 110.

Answer 1

start with the smallest possible factor. Divide by it as many times as possible, then move on to the next prime factor, and repeat until you have reached a prime number.

110 = 2 * 55
3 does not divide 55
55 = 5 * 11

There are no other prime factors, so

110 2*5*11


720 = 2*2*2*2*45
45 = 3*3*5
so, 720 = 2^4 3^2 5

Answer 2

Math is cool