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What are the factors of 4?
The factors of 4 are 1, 4, and 2.
What is an example of a composite number?
12 is a composite number. Its factors are 1, 2, 3, 4, 6, and 12. 4 is also a composite number. Its factors are 1, 2, and 4. Any number that has factors in addition to 1 and itself is a composite number.
What is the maximum number of factors a number can have?
There is no upper limit. For example, take the powers of 2: 1 has 1 factor (1), 2 has two factors (1, 2), 4 has 3 factors (1, 2, 4), 8 has 4 factors (1, 2, 4, 8), etc.; you can keep multiplying indefinitely by 2, to add one more factor.
Is a sum of a pair of factors of a number always less than the number?
No. A good example of that is with 4. In this case 2+2 =4 and 2*2=4. Additionally, when the factors are the number itself and 1, the sum is greater than the number. For example 1*5 = 5 while 1+5 = 6.
What are the common factors of 4 and 10?
The factors of 4 are 1, 2, and 4. The factors of 10 are 1, 2, 5, and 10. The common factors of 4 and 10 are 1 and 2. This means 2 is the greatest common factor (GCF), and 2 is the only significant common factor, since all numbers have 1 as a factor.
