If you know the prime factorization of a number, you can tell how many factors it has.
Write the prime factorization with exponents. Add 1 to each exponent. (Numbers without exponents actually have the exponent 1.) Multiply them together. That will be the number of factors.
10 = 2 x 5 = 21 x 51
2 x 2 = 4
10 has four factors.
no
A prime number has no factors except itself and 1.
There is no such number. Just as numbers don't stop, the possible number of factors is infinite.
Because 16 is a square number and you wouldn't list the 4 twice.
Incorrect. Square numbers are composite and have an odd number of factors.
It has more than two factors.
No. It has more than two factors.
It has more than 2 factors.
Any number is divisible by its factors.
No. All whole numbers are integers.
This is not possible, because any number squared would be positive, not negative.
Yes.