Prime factors of a number are prime numbers that multiply to equal the number. #prime #factors #learning #practice #mathskills #exampreparation #fbreelsvideo #Easy #multiply #maths | Math Fannatics

Prime factoring by working through the list of prime numbers is a nice way to make this topic concrete for students. If students have a hard time knowing if a number divides by one of the primes, they can use their divisibility rules. For example, if you add the digits in a multi-digit number and the sum is divisible by 3, then the multi-digit number is also divisible by 3. I know that 75 is divisible by 3 because 7 5=12 and 12 is divisible by 3. Going even further, 1 2=3. there is a free set of