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If you know the prime factorization of a number, you can find out the total number of factors.
Example: 210
2^1 x 3^1 x 5^1 x 7^1 = 210
Add one to the exponents and multiply them.
2 x 2 x 2 x 2 = 16, the total number of factors.
You know that 1, 2, 3, 5, and 7 are factors. You need three more to get halfway.
2 x 3 = 6
2 x 5 = 10
2 x 7 = 14
Divide all those numbers into 210.
(210,1)(105,2)(70,3)(42,5)(35,6)(30,7)(21,10)(15,14)
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∙ 7y ago
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What is a number less than 100 and has factor pairs?
All of the composite numbers less than 100 have factor pairs.
What are all the factor pairs of 83?
It's a prime number so it only has one factor pair, 1•83
What are all the factor pairs of 26?
The factor pairs of 26 are: 1 × 26 2 × 13
What are all the factor pairs of 2?
1 x 2, 2 x 1 (two is a prime number)
What are all of the factor pairs of 108?
108,154,236,327,418,612,9
You are thinking of a number you know that to be sure you find all of the factor pairs of this number you have to check all the numbers 1 through 15?
You are thinking of 225.
What is a number less than 100 and has factor pairs?
All of the composite numbers less than 100 have factor pairs.
What are all the factor pairs of the number 82?
(82,1)(41,2)
What are all the factor pairs for the number 54?
(54,1)(27,2)(18,3)(9,6)
What are all the factor pairs of 52?
Factors are numbers you can multiply together to get another number. The factor pairs are: (1, 52) (2, 26) (4, 13)
What are all the factor pairs of 101?
1 x 101 (101 is a prime number.)
What are all the factor pairs of 40?
1x40, 2x20, 4x10, 5x8 are all the factor pairs of 40.
What are all the factor pairs of 83?
It's a prime number so it only has one factor pair, 1•83
How can finding factor pairs help with finding all of the factors number?
If you know the prime factorization of a number, you can find out the total number of factors. Example: 210 2^1 x 3^1 x 5^1 x 7^1 = 210 Add one to the exponents and multiply them. 2 x 2 x 2 x 2 = 16, the total number of factors.
All the factor pairs of 20?
The factor pairs of 20 are: 20,1 / 10,2 / 5,4
What are all the factor pairs for 61?
Only itself and one because 61 is a prime number
What are all the factor pairs of 201?
Apart from [1,201], [3,67] is the only other factor pair. Since both 3 and 67 are prime numbers, you know you won't be able to find any more factor pairs.
