what two numbers between 50 and 60 are both multiples of the same number. what factor do they have in common?
54 and 57 are multiples of 3.
52 and 54 are multiples of 2.
Your mystery number is 11.
4 and 6 are multiples of both the numbers 1 and 2.
Any number divisible by 15
There are three numbers between 10 and 50 which are divisible by both 3 and 5. All numbers that are multiples of 3 and 5 are the multiples of the lowest common multiples (lcm) of 3 and 5 which is 15. The multiples of 15 between 10 and 50 are {15, 30 and 45}, thus there are 3 numbers.
Two and three are relatively prime, or coprime. That means that they have no smaller number, or factor, in common. So, the multiples of both numbers are the multiples of the product of the two, or the multiples of six.
Numbers are divisible by their factors. Multiples are divisible by their numbers.
Four. 24 and its multiples.
Multiples of 6 are.
All the multiples of 4 are also multiples of 2.
A factor is a number of which the number being considered is a multiple. Two consecutive numbers cannot both be multiples of 4, for instance, as there isn't 3 numbers in between them. They cannot in fact be multiples of any common number other than 1. Thus the HCF of two consecutive numbers must always be 1.