26
14
The number 9: factors are 9, 3, and 1.
9 The three factors are 1, 3, and 9. 9 The three factors are 1, 3, and 9.
There is no such number. Any prime number raised to the third power has exactly four factors. For example, 23 = 8; its factors are 1, 2, 4, 8 (1, 2, 22, 23). Since - as is well-known - there is no largest prime number, there is no largest number that has exactly four factors.
48 has ten factors, 60 and 72 have twelve apiece, 80 is the next one with exactly ten.
The Answer Is Actually 26 not 24 Because The Factors Of 24 Are: 1,2,4,6,12 and 24 Where as 26 Has: 1,2,13, 26!
The next square number after ten (which is not a square number) is 16. Sixteen has five factors.
the answer is 25 because you're asking for a number greater than 12 and smaller than 40 and has exactly 3 factors so in that case 25 is the only one.
9
169
The number is 105 (3 x 5 x 7). The next number that is the product of 3 odd primes is 165 (3 x 5 x 11).
A perfect number is a number that is the sum of all its proper factors (that is all its factors excluding itself). The next perfect number after 28 is 496