- #1
Edin_Dzeko
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I'm learning Algebra (the basic and foundation of Math) 'cause I stink. Now I'm just doing some review from the beginning before I get into the tough stuff.
I'm a bit stumped on factors and multiples. I understand it but not clear enough. I couldn't give you a definition and if you asked a tricky enough question, I might get it wrong.
Can someone explain it?
What I understand:
If a question ask what are factors of 20, I'd give numbers that can be divided to 20 and get an even answer. So when I type in 20 in my calculator, and then the "/" the number that I put in after the "/" should give me an even number, if it does, then it's a factor. So ex, I'd go
Factors of 20: {1,2,4,5,10,20}
1x20 = 20
2x10 = 20
5x4 = 20
that's the reason why I wrote 1,2,4,5,10,20 up until I started studying this like today I always that when someone asked that question you'd just say 1,2,5,10,20 I would never have included the 4.
Multiples, based on the example the book I"m using gave, you simple just list the times tables for that specific number ex:
Multiples of 2 = {2,4,6,8,10,12,...}
the book didn't include 1 for the multiples but it did for the factors. So why is that we put 1 for factors and not multiples??
Lastly there was a question:
{y| y is a natural number multiple of 7}
the answer was {7,14,21...}
if it was "y is a WHOLE number multiple of 7" would the zero have been included??
I'm a bit stumped on factors and multiples. I understand it but not clear enough. I couldn't give you a definition and if you asked a tricky enough question, I might get it wrong.
Can someone explain it?
What I understand:
If a question ask what are factors of 20, I'd give numbers that can be divided to 20 and get an even answer. So when I type in 20 in my calculator, and then the "/" the number that I put in after the "/" should give me an even number, if it does, then it's a factor. So ex, I'd go
Factors of 20: {1,2,4,5,10,20}
1x20 = 20
2x10 = 20
5x4 = 20
that's the reason why I wrote 1,2,4,5,10,20 up until I started studying this like today I always that when someone asked that question you'd just say 1,2,5,10,20 I would never have included the 4.
Multiples, based on the example the book I"m using gave, you simple just list the times tables for that specific number ex:
Multiples of 2 = {2,4,6,8,10,12,...}
the book didn't include 1 for the multiples but it did for the factors. So why is that we put 1 for factors and not multiples??
Lastly there was a question:
{y| y is a natural number multiple of 7}
the answer was {7,14,21...}
if it was "y is a WHOLE number multiple of 7" would the zero have been included??