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A number has many factors including 3 and 8. What other number must also be a factor of the same number?

User Brian Putt
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2 Answers

2 votes

Answer:

72

Explanation:

User Battle
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Two "factors" are multiplies together to product another number (the product). So, for example, the prime factors of 10 are 2 and 5. Prime factors that, themselves, have only factors of 1 and themselves. Non-prime numbers, like 10, have prime factors. Note that 1 is a factor of all integers.

If the two factors are equal (the same), like 4*4=16, then each of them is called a "square root."

Note: a cube root is one of three equal factors of a number, for example, 2 is the cube root of 8 (that is, 2*2*2=8).

Practice:

What is the square root of 49?

What is the square root of 100?

What is the square root of 625?

Memorize the squares of the numbers from 1 to 10, or 1 to 20 -- that will be very helpful in math classes.

User Breddy
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