How to find the Factors of 28
- 28 is a composite number.
- Prime factorization: 28 = 2x2x7, which can be written 28 = 22x71
- The exponents in the prime factorization are 2 and 1. Adding one to each exponent and multiplying we get (2 + 1)(1 + 1) = 3x2 = 6. Therefore 28 has exactly 6 factors.
- The factors of 28 are: 1, 2, 4, 7, 14 and 28
- Factor pairs of 28 are: 1x28, 2x14 and 4x7
- 28 has at least one exponent greater than 1 in its prime factorization so √28 can be simplified. Taking this into account, we get √28 = 2x√7