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First, we notice it is even. Write 2 as a prime factor and divide it out.
Now we have 27, which we notice is divisible by 3.
We divide by 3 until we can't, and notice we do it three times and end up at 1.
When we have 1, then we know all the prime factors.
In this case, we have 54 = 2*3*3*3 = 2*33.= 21*33
Notice the exponents are 1 and 3
So we add one to these and multiply: 2*4 = 8.
This means 54 has 8 factors, so we'll know if we miss any.
To find the factors, just look for all the ways we can multiply with one 2 and three 3s.
We have, 1, 2, 3, 6, 9, 18, 27, and 54.
As there are eight, we know we didn't miss any.
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List all the factors for 54?
The factors of 54 are: 1, 2, 3, 6, 9, 18, 27, 54.
Why is 54 composite?
In order to show that a number is composite there is no need to find all the factors, we have to show only that it has more than two factors. 54 is divisible by 2, 3, 6 etc. which clearly shows that it has more than two factors.
What are all the common factors for 36 and 54?
Common factors of 36 and 54 are: 1, 2, 3, 6, 9, and 18.
What are all the common factors of 24 and 54?
The common factors are: 1, 2, 3, 6.
What are all the factors of 54 and 90?
The factors of 54 are: 1, 2, 3, 6, 9, 18, 27, 54 The factors of 90 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90
