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What is the prime factorization of 990?

2 x 3 x 52 x 11

2 x 3 x 5x 11

2 x 32 x 5 x 11

22 x 3 x 5x 11


Sagot :

Answer:

2 x 3² x 5 x 11

Step-by-step explanation:

990 ÷ 2 = 495 so 2 is one factor

495 ÷ 2 = 247.5 - There is a remainder. So we can't divide by 2 anymore. Use next prime number

495 ÷ 3 = 165 - No remainder. So 3 is one factor

165 ÷ 3 = 55 - No remainder. So 3 is one factor

55 ÷ 3 = 18.3333 - There is a remainder. We can't divide by 3. Use next prime number

55 ÷ 5 = 11 - No remainder. So 5 is one factor

11 ÷ 5 = 2.2 - There is a remainder. We can't divide by 5. Use next prime number

11 ÷ 7 = 1.5714 - This has a remainder. So 7 is not a factor.

11 ÷ 11 = 1 - No remainder. SO 11 is one factor

Now put it together: 2 x 3² x 5 x 11

Factor trees also help. Have a good day or night