Math - Multiples and Factors

Multiples

Multiples are the product of any quantity multiplied by intenger.

Multiples of 8:
${8, 16, 24, 32, 40, 48, 56, 64, 72, 80, ...}$

Multiples of 3.5:
${3.5, 7, 10.5, 14, 17.5, 21, 24.5, 28, 31.5, 35, ...}$

Multiples of -5:
${-5, -10, -15, -20, -25, -30, -35, -40, -45, -50, ...}$

Factors

Factors are whole numbers that can divide another number evenly, without leaving a remainder.

Factors of 16:
${ 1, 2, 4, 8, 16 }$

Factors of 35:
${ 1, 5, 7, 35 }$

Factors of 52:
${ 1, 2, 4, 13, 26, 52 }$

Divisibility

Divisibility means a whole number can be divided by another number (the divisor) without leaving a remainder.

8 is divisibly by 2
8 not is divisibly by 3

Divisibility Rule

A divisibility rule is a fast way to determine whether a number is divisible by a divisor or not.
Divisibility Rule for numbers 1-30 (wikipedia)