To find the prime factorization of 90, start with the lowest Prime number that will divide into 90. That number is 2. 2 times 45 equals 90. 2 is a number in the prime factorization of 90. Next, find the lowest prime number that will divide into 45. The number is 3, and 3 times15 equals 45. 3 is one of the prime factors, so now you have 2 times 3 times 15. 15 is not a prime number, and the lowest prime number that will divide into 15. 3 times 5 is 15. You'll notice that both 3 and 5 are prime numbers, so the prime factorization of 90 is 2 X 3 X 3 X 5. Check your answer to make sure it is correct and you're done.
56
Reason 2 X 5 X 9 is Not Prime Factorization of 90The reason 2 X 5 X 9 is not the prime factorization of 90 is that 9 is not a prime number. 3 X 3 is 9, so the prime factorization of 90 is 2 X 3 X 3 X 5.
2 x 3 x 3 x 5 = 90
Ronald is correct, as 2x3x3x5 = 6x3x5 = 18x5 = 90. Ronald would have also been correct to put 2x32x5. Donald is incorrect, as 32x5 = 3x3x5 = 9x5 = 45.
3 is already prime. No factorization.
Prime factorization of 90 = 2x3x3x5
The prime factorization of 90 with exponents is: 2 x 32 x 5
The prime factorization of 90 is 2 x 3 x 3 x 5.
Oh, what a happy little prime factorization we have here! Let's take a closer look. When we multiply 2 by 3 by 3 by 5, we get 90. So, this prime factorization is for the number 90. Isn't that just lovely?
The prime factorization of 18 is 2*3*3 The prime factorization of 27 is 3*3*3 The prime factorization of 90 is 2*3*3*5
Prime factorization of 32 = 2x2x2x2x2 Prime factorization of 90 = 2x3x3x5 Prime factorization of 30 = 2x3x5 What is common in the prime factorization of the numbers? Only 2 is common, so GCF is 2.
No prime power exists since there are no duplicate prime numbers in the prime factorization.
Prime Factorization of 90The prime factorization of 90 is not 2 X 5 X 9 because 9 is not a prime number. It can be factored into 3 X 3, which are prime numbers, so the prime factorization of 90 is2 X 3 X 3 X 5.
Negative numbers don't have prime factorizations.
90 = 2*3*3*5
56
90 = 2 x 32 x 5