4, 9, 25 and 49.
30, 42, 66, 70 and 78.
prime squares 4, 9, 25, 49
Any prime number (greater than 3) to the 4th power has 5 factors, like 625 and 2401.
100/3-1, 100/3 and 100/3+1 that is, 99, 100 and 101.
4, 9, 25, and 49 are all of the numbers between 1 and 100 having 3 factors.
100
Three numbers.
Numbers under 100 that have 12 factors must be in the form of ( p_1^{11} ) or ( p_1^3 \times p_2^2 ), where ( p_1 ) and ( p_2 ) are distinct prime numbers. The prime factorization of 12 is ( 2^2 \times 3 ). Thus, the numbers under 100 with exactly 12 factors are ( 2^{11} = 2048 ) and ( 2^3 \times 3 = 24 ).
As a product of its prime factors: 2*2*5*5 = 100
4, 9, 25 and 49.
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By definition, a prime number has exactly two factors. So, there are no prime numbers with exactly three factors.
All the numbers up to 100 are factors in some numbers up to 100. For example, 1 is a factor of every number and 2 is a factor of all the even numbers. The numbers greater than 50 are only factors of themselves among the numbers up to 100, 95 is only a factor of itself, because the next number for which it is a factor is 190, which is greater than 100.
4, 9, 25, 49
They are 4, 9, 25 and 49.
100... pretty much most high numbers...