A prime number has no factors other than 1 and itself. 25 is a composite number because its factors are 1, 5, and 25.
1, 5, 25 are the only factors of 25. So, there are 3 factors of 25. Note: We only care about POSITIVE INTEGERS.
ten more than five times a number
125 is a composite number because it has more than two factors. Its factors are 1, 5, 25, and 125.125 is divisible by 5 in addition to 1 and itself. It is a composite number.125 is a composite number. In addition to 1 and itself, it is divisible by 5.
A composite number is a number that has factors other than 1 and itself. Assuming that you are not including the numbers 25 and 35. Prime numbers are numbers whose only factors are itself and one, so if you find the prime factors of each number: 26 factors to 2, 13 27 factors to 3,3,3 28 factors to 2,2,7 29 prime 30 factors to 2, 3, 5 31 prime 32 factors to 2,2,2,2,2 33 factors to 3, 11 34 factors to 2, 17.
840
A composite number is a number that is not a prime number, ie it has more than two distinct factors. The factors of 25 are 1, 5, 25 - three distinct factors.
84 has 12 factors.
28
30
It has more than two factors.
30
200
43 is a prime number with only two factors whereas 25 is a composite number with more than two factors
For common factors you need more than one number.
Your question isn't clear. If you want to know which number less than 25 has the most factors, the answer is 24.
25 is a composite number because it has more than two factors