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3 years ago

Which is a factor of 21? 4 3 6 5

Mathematics

2 answers:

arsen [322]3 years ago

3 0

Answer:

Step-by-step explanation:

Using listing:

$1 \times 21 = 21$

$3 \times 7 = 21$

No other factors are possible.

Hence, 1, 3, 7 and 21 are factors of 21.

Nadusha1986 [10]3 years ago

3 0

Answer: 3

Step-by-step explanation:

3 is the only number you can multiply to get 21. Example 3x7=21

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Approximate relative error in terms of Percentage

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Answer:

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