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Factoring and Multiples

This category should include questions about greatest common factors and lowest common multiples.

500 Questions

What is 1800.00 x 12?

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Asked by Wiki User

26000

Is a factor a prime number?

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Asked by Wiki User

A factor can or cannot be a prime number

Ex: 2 is the factor of all other even numbers its a prime number

but 9 is a factor of 18 and its not a prime number

A prime is a factor but a factor being a prime number varies

What is the LCM of 8 16 32 64?

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What is most common multiple of 16 8 64 32

What is the least common multiple of 200 and 250?

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Asked by Wiki User

The least common multiple of 200 and 250 is 1,000.

What is the greatest common factor of 30 35 and 40?

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Asked by Wiki User

The Greatest Common Factor of 30, 35, 40 is 5.


What Numbers can go into 266?

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1, 3, 89, 267 | 1 x 267, 3 x 89.

What is the fraction form of 0.626262?

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Asked by Wiki User

If you mean 0.626262 recurring to infinityt , then it is written as 0.626262...

Motice the three periods/ fullstops/dots after the end of the number. This inidicates to mthemeticians that the number recurrs to inifinity. As given 0.626262 kthenthat is the complete decimals/ M

. Method for conversion.

Let P = 0.626262...

Yjem 100P = 62.626262...

S8btract

99P = 62

Notice the recurring decimals subtreact to zero. .

Hence

99O - 62

P = 62/99 Thi9s will not reduce any furthrt.

For a yrtminsting decimal of 0.626262

Then 0.626262/1.000000 =

626262/1000000

Cancel down by '2' .

313131/500000 This will not cancel ciown any further.

So for a recurring decimakl 0.262626... = 62/99

For a terminatiung decimal 0.626262 = 313131/500000

Please make sure you place in the 'three stops' for a rccurring decimal.

What number between 1 and 25 has the most factors?

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Asked by Wiki User

24 has the most factors of all the numbers between 1 and 25. The 8 factors of 24 are 1, 2, 3, 4, 6, 8, 12, and 24.

1/2 of 12 = 1/4 of?

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Asked by Jess Gamer

The answer is 45 you brainless idiots

What is 6 over 33 in simplest form?

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Asked by Wiki User

No. 3/6 can be reduced to 1/2, which would be simplest form.

What is the least common multiple of 135 and 375?

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The least common multiple (LCM) is often also called the lowest common multiple or smallest common multiple. Keep in mind that these different terms all refer to the same thing: the smallest positive integer which is a multiple of two or more numbers.

The least common multiple of 135 and 375 is 3375.

How do you factor x4 plus y4?

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Asked by Wiki User

You can't.

x4 + y4 is irreducible.

It's (x+yi^1.5)(x+yi^0.5)(x-yi^1.5)(x-yi^0.5). You use the equation x^2-y^2=(x+y)(x-y) and x^2+y^2=(x+yi)(x-yi).

*Edit This IS reducible.

X^4+Y^4=X^4+Y^4+2X^2Y^2 -2X^2Y^2 I add and minus 2X^2Y^2 so the value stays the same.

X^4+Y^4+2X^2Y^2=(X^2+Y^2)^2

So it equals to (X^2+Y^2)^2-2X^2Y^2.

Then, we factor using difference of squares.

(X^2+Y^2)^2-2X^2Y^2=(X^2+Y^2+sqrt2 XY)(X^2+Y^2-sqrt2 XY)

*Note the XY is not included in the sqrt sign

What is the lcf for 36 63?

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Asked by Wiki User

The least common factor of any set of integers is 1.

What is a common factor of 21 and 49?

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Asked by Wiki User

A common factor is '7'

3 x 7 = 21

7 x 7 = 49

'7' appears in both multiples.

What is the factor tree for 1521?

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Asked by Wiki User

Since the number is NOT even , then it will not divide by '2'

So try the next [ri,e number. which is '3'

Hence

3)1521 = 507

3)507 = 169

169 will not divde by '3,5, 7,11, but it will divide by '13' the next prime number.

13)169 = 13

  1. 13 = 1

So reduced to its factors it is is 3,3,13,13.

What are factors of 41?

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Asked by Wiki User

'1' & '41' , because '41' is a prime number.

What is the gcf of 16 and 18 and 30?

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Asked by Wiki User

what is the greatest common factor off 16,18and30

What is the product of the prime factors of 112?

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For 86, 2 and 43.

For 112, 2 and 7.

Which numbers from 1 to 25 has the fewest factors?

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Asked by Wiki User

They are: 1 2 3 5 7 11 13 17 19 and 23 which are all prime numbers having only 2 factors except for 1 which has only one factor which is itself.