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How do you know when you've found all the factors of a number?
If you multiply all the prime factors you've found together and the result is the number, you have found all of them.
What are the common factors of 207?
There cannot be a greatest common factor of just one number. To be common there need to be at least two numbers. If you find all the factors of two or more numbers, and you find some factors are the same ("common"), then the largest of those common factors is the Greatest Common Factor.
Common factors of 55?
There cannot be a greatest common factor of just one number. To be common there need to be at least two numbers. If you find all the factors of two or more numbers, and you find some factors are the same ("common"), then the largest of those common factors is the Greatest Common Factor.
What are the factors of a number and how do you find them?
When you say "factors" there are 3 different things this could mean.Prime factors (this is probably not the one you want, but it will help later). You usually do this with a "factor tree". Pencil and paper would make it look like a tree!Find the prime factorization of 60: 60 = 6x10 = (2x3)x(2x5) = 2x2x3x5. (=22x3x5).All factors of a number (this sounds like the one you want): All the numbers from 1 to 60 inclusive which divide evenly into the number; you can find these by looking at the prime factors: 1,2,3,4,5,6,10,12,15,20,30,60.All factor pairs: what two numbers can you multiply to give 60? They are made up from the factors you just found: 1x60, 2x30, 3x20; 4x15, 5x12, 6x10.
Number of divisor of 2700 is?
to find the number of divisors of number is same as finding number of factors step1:break number into prime components 2700=(3^3)*(2^2)*(5^2) now just take the powers of all prime factors and add 1 to it and multiply (3+1)*(2+1)*(2+1)=36 divisors or factors for 2700
