The greatest proper factor for 27 would be 9. 9 x 3=27. 27 is a factor of itself, but since we are talking about proper factors we exclude it.
3 and 9
3 and 9
There are different ways to demonstrate how you found proper factors. One is: Start with any number, for example 27. List the factor pairs of 27: 1 x 27 3 x 9 The factors are 1, 3, 9, 27. The proper factors are 1, 3, 9.
3, 9, 27
List the factors of 54 without 1 and 542, 3, 6, 9, 18, 27
The factors of 27 are 1, 3, 9, and 27.
Factors are the numbers that evenly divide into a given number.Proper factors are all the factors of the number except the number itself. Some definitions do not allow the number 1, either. If you distinguish between proper factors and proper divisors, proper factors do not include 1, but proper divisors do.Examples:All factors of 54 are 1, 2, 3, 6, 9, 18, 27, and 54.Proper factors of 54 are 2, 3, 6, 9, 18, and 27.Proper divisors of 54 are 1, 2, 3, 6, 9, 18, and 27.All factors of 9 are 1, 3, and 9.Proper factors of 9 are only 3.Proper divisors of 9 are 1 and 3.All factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30.Proper factors of 30 are 2, 3, 5, 6, 10, and 15.Proper divisors of 30 are 1, 2, 3, 5, 6, 10, and 15.All factors of 100 are 1, 2, 4, 5, 10, 20, 25, 50, and 100.Proper factors of 100 are 2, 4, 5, 10, 20, 25, and 50.Proper divisors of 100 are 1, 2, 4, 5, 10, 20, 25, and 50.All factors of 120 are 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, and 120.Proper factors of 120 are 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, and 60.Proper divisors of 120 are 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, and 60.
The factors of 27 are 1, 3, 9, and 27.The factor pairs of 27 are 1 x 27 and 3 x 9.The proper factors of 27 are 1, 3, and 9 or,if the definition you are using excludes 1, they are 3 and 9.The prime factors of 27 are 3, 3, and 3.Note: There is repetition of these factors, so if the prime factors are being listed instead of the prime factorization, usually only the distinct prime factors are listed.The only distinct prime factor is 3. The prime factorization of 27 is 3 x 3 x 3 or, in index form (in other words, using exponents), 33.NOTE: There cannot be common factors, a greatest common factor, or a least common multiple because "common" refers to factors or multiples that two or more numbers have in common.
27 has four factors.
The factors of 27 are: 1, 3, 9, 27.
Factors of 27: 1, 3, 9, 27