Oh, dude, you're asking me to list all the factors of 15? Like, seriously? Alright, fine. The factors of 15 are 1, 3, 5, and 15. There you go, now you know. Happy now?
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A factor = any number which can be divided into the given number with no remainder Factoring 75: 1 x 75 3 x 25 5 x 15 Factors of 75 are 1, 3, 5, 15, 25, 75.
Factors are numbers you can multiply together to get another number. 30: 1, 2, 3, 5, 6, 10, 15, 30
Only perfect squares can have an odd number of factors. The answer is 16. It has five factors: 1,2,4,8,16.
A number is divisible by 15 if it is divisible by the prime factors of 15, that is, 5 and 3.
The GCF is 3.