60, 72, 84, 90 and 96 each have 12.
80 has 5 factor pairs.
2 - it's a factor of 25 numbers between 1 and 50
5 and 25
120 and 144
The idea is to look for common factors, between the 15 and the 100. Then, divide both numbers by this common factor.
All numbers have an infinite amount of multiples.
You need at least two numbers to find something in common between them.
Since 50 is a factor of 100, it is automatically the GCF.
Every whole number between 1 and 50 is a factor of one or more whole numbersbetween 1 and 100.' 1 ' is a factor of every whole number.
2, 4, 8, 16, 32, 64
2, 4, 8, 16, 32, 64
There are 90 palindromic numbers between 100 and 1000