The number 5 has 1 and _____ as its factors.
A number a has 3 as its smallest prime factor, and another number b has 5 as its smallest prime factor. What is the smallest prime factor of the number a+b?
A number a has 7 as its smallest prime factor, and another number b has 3 as its smallest prime factor. What is the smallest prime factor of the number a−b?
A rational number can be expressed as a terminating decimal if its denominator has factors
A number that has 2 and 3 as factors is divisible by ___.