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Sagot :
The factors is 21 is 1, 3, 7, 21.
Therefore in the choices above, the factors of 21 is 1 and 7.
Hope this helps =)
Therefore in the choices above, the factors of 21 is 1 and 7.
Hope this helps =)
In getting the factors, you must get the divisibility number of the given number.
Example:
21 is divisible by: 1 (multiplied by itself, and 21 is divisible by 7) and 7 (multiplied by 3 to get 21 which is divisible by 7).
Example:
21 is divisible by: 1 (multiplied by itself, and 21 is divisible by 7) and 7 (multiplied by 3 to get 21 which is divisible by 7).
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