Question

Find a number greater than 25 that has more factors than the number 19, 21, 23 and 25

Answer 1

19 has 2 factors (1,19)
21 has 4 factors (1,3,7,21)
23 has 2 factors (1,23)
25 has 3 factors (1,5,25)
you need the nearest number 25 that has 5 factors or more :28(1,2,4,7,14,28)

Answer 2

The possible number is 28.

Explanation:

Since,

Factors of 19 = 1, 19,

Factors of 21 = 1, 3, 7, 21,

Factors of 23 = 1, 23,

Factors of 25 = 1, 5, 25

Now, numbers greater than 25 are,

26, 27, 28, 29, ......

Factors of 26 = 1, 2, 13, 26,

Factors of 27 = 1, 3, 9, 27,

Factors of 28 = 1, 2, 4, 7, 14, 28

Hence, a number greater than 25 that has more factors than the number 19, 21, 23 and 25 would be 28.