Actually, 25 is NOT a proper factor of 25.
Factors are numbers that, when multiplied with another factor, result in the number, like 25.
Proper factors are just like regular factors EXCEPT they do not include the actual number.
The proper factors of 25 are 1 and 5.
1, 5, and 25
They are: 1, 5, 25 and 125
The factors of 25 are: 1, 5, and 25.
The factors of 25 are (1 x 25) and (5 x 5) The prime factors of 25 are 5 x 5
Nine proper factors: 1 2 4 5 10 20 25 50 100.
The proper factors of 50 are 2, 5, 10, and 25.
The factors of 25 are 1,5, and 25. (There is one 5 because 5 times 5 is 25) The factors of 75 are 1, 3, 5, 15, 25, and 75. The common factors are 1, 5, and 25
25 is, 1 x 25 and 5 x 5 which makes 25 a composite number not a prime.
5
5.
The factors of 25 are 1, 5, and 25 1 + 5 + 25 = 31 (the sum of all the factors of 25)
Factors of 5 are 1 and 5 Factors of 25 are 1, 5 and 25 Prime factor of both numbers is 5