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Earn +20 ptsQ: How do you know when 7 is a factor of a number?
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How would you test weather 7 is a factor of 29?
Since 4 x 7 is 28, you know that 7 isn't a factor of 29. Since 29 is a prime number, you know that 7 isn't a factor of it. To be perfectly sure, divide 7 into 29. If the answer is an integer, it's a factor.
What number is both a factor and multiple of 7?
The only number that could be both a factor and a multiple is 7 itself.
Why is 7 the prime factor of 28 and 63?
Because 7 is a factor of 28 and 63 and 7 is a prime number.
What multiple of seven is a factor of seven?
The number 7 is a factor of 7,14,21,28,35,42,49,56,63,70,77,84,91,98,105 or anything multiplied by 7.
What is the greatest common factor of 7 and 8 and 10?
Technically, 7 is a prime number so itself and 1 are the only candidates. If you consider 1 to be a factor, then the only common factor is 1, which is not useful in any application I know.
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