factors and primes by 2july. definition product – the answer to a multiplication problem. 5 x 6 =...
TRANSCRIPT
Definition• Prime Number – a number that
has only two factors, itself and 1.
55 is prime because the only numbers
that will divide into it evenly are 1 and 5.
Definition• Prime Factorization – A way to
write a number as the product of prime factors.
2 x 2 x 3 = 12or
2 x 3 = 122
How to Do Prime Factorization Using a Factor Tree
48Step 1 – Start with a number.
Step 2 – Write down a pair of factors that make this number.
6 x 8 = 48
How to Do Prime Factorization Using a Factor Tree
Step 3 – Find factors of these factors.
6 x 8 = 48
2 x 3 x 2 x 4 = 48
How to Do Prime Factorization Using a Factor Tree
Step 4 – Find factors of these numbersuntil all factors are prime numbers.
6 x 8 = 482 x 3 x 2 x 4 = 48
2 x 3 x 2 x 2 x 2 = 48
How to Do Prime Factorization Using a Factor Tree
Step 5 – Count how many numbers arethe same and write them in index form.
6 x 8 = 482 x 3 x 2 x 2 x 2 = 482 x 2 x 2 x 2 x 3 = 48 2 x 3 = 484