Question

explain why 3x5x7+7 is a composite number​

Answer 1

Composite numbers are the one which have at least one !ore factor than 1 and the number itself.

3×5×7+7 is a composite number as it has 4 factors:

1

3×5×7+7

3×5×1+1

7

MORE INFORMATION

A number that can be divided evenly by number other than 1 or itself.

3*5*7 + 7

=15*7 + 7

=105 + 7

=112

Hence 3*5*7+7 is a composite number.