2
Factors are numbers you can multiply together to get another number. 16: 1, 2, 4, 8, 16 16 has 5 factors.
25 = 5 * 5, or 25 = 25*1 the factors of 25 are: 1,5,5, & 25 (4 factors)
2
It has four factors: 1 5 31 155.
Four factors: 1 5 37 185.
25 has three factors: 1, 5, 25
It has 5 prime factors namely 2,3,5,7,11
The factors of 20 are 1, 2, 4, 5, 10, 20 The distinct prime factors are 2 and 5.
Two: 1 and 5.
The answer is 4. These factors are 1, 3, 5, 15.It has four factors and they are: 1, 3, 5 and 15
5 is a prime number so therefore it has only 2 factors which are itself and one
305 has four factors: 1, 5, 61, 305