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Do all square numbers have exactly 3 factors?
No. 81=9*9=3*27=1*81 81 has 5 factors and is a square number. 36=6*6=3*12=1*36=2*18=4*9 36 has 9 factors and is a square number. This doesn't mean that no square numbers have exactly 3 factors though, because: 9=3*3=1*9 9 has 3 factors and is a square number. 4=2*2=1*4 4 has 3 factors and is a square number. All square numbers have an odd number of factors though (because they have a whole number which multiplies by itself to get the number). Factors are whole numbers only, and not decimals. Hope this helps :)
What numbers are multiples of 9 and factor of 36?
Multiples of 9 that are factors of 36 include 9 and 18. A multiple of a number is any number that can be divided by that number without leaving a remainder. A factor of a number is a number that divides the original number without leaving a remainder. In this case, 9 and 18 are both multiples of 9 and factors of 36 because they can be divided evenly into 36.
What are all the odd factors of 20?
1 and 5 are the factors of 20 which are odd.
What is the number between 60 and 70 that has an odd number of factors?
64 because 8*8=64. you just have to find the square number.
How many different 2 digit odd numbers can be formed from the digits 1 through 8 if no digits are repeated in a number?
36
Which number between 30 and 40 has an odd number of factors?
That number is 36.
Which numbers between 1 and 40 have an odd number of factors?
These numbers between 1 and 40 have an odd number of factors: 4, 9, 16, 25, 36.
What are factors of 36 but less than 25 but it is an odd number?
1, 3 and 9
Why has 36 got an odd number of factors?
Because it's a square and doesn't list the 6 twice.
What number between 12 and 40 have 3 factors?
only 2516 and 36 also have an odd number of factors, but both of those have more than 3.
Odd number of factors?
Square numbers have an odd number of factors.
What is the sum of the positive odd factors of 36?
Well, honey, the positive odd factors of 36 are 1, 3, and 9. Add those bad boys up and you get 13. So, the sum of the positive odd factors of 36 is 13. Hope that satisfies your math cravings, sweetie!
What kind of factors have an odd number of factors?
Square numbers have an odd number of factors.
How many factors of 36 are odd?
The positive integer factors of 36 are: 1, 2, 3, 4, 6, 9, 12, 18, 36 Of these, 1, 3, and 9 are odd.
How many integers less than 100 have an odd number of factors?
There are 9 integers less than 100 that have an odd number of factors.Every factor of a number has a pair, eg 2 & 3 are a factor pair of 6; and so it would be expected that every number has an even number of factors.However, if the factor pair of a number are the same number (eg 6 & 6 are a factor pair of 36), then there will be an odd number of factors.When there is a repeated factor like this, the number is a perfect square.Thus only perfect squares have an odd number of factors.Less than 100 there are 9 perfect squares (1, 4, 9, 16, 25, 36, 49, 64 & 81) which have an odd number of factors.100 itself is a perfect square and also has an odd number of factors, but the question asked for those numbers less than 100 with an odd number of factors.
Can a number have an odd number of factors?
Yes, quare numbers have an odd number of factors.
Can an odd number have odd numbers of factors?
Yes. Square numbers have an odd number of factors. 49 has three factors.
