4. Explain why 7 x 11 x 13+ 13 and 7 x 6 x 5 x 4 x 3 x 2 x 1 + 5 are composite
numbers.
Answers
Answered by
4
Answer:
Given 7×11×13+13=13×(7×11+1)=3×78
This number is multiple of two integers.Hence it has more than two factors.Hence it is a composite number.
Similarly in
7×6×5×4×3 ×2×1+5
=5(7×6×4×3 ×2×1+1)=5×1009
This number is multiple of two integers.Hence it has more than two factors.Hence it is a composite number.
Answered by
2
Answer:
hm...
7×11×13+13=
77×26=2002
2002 is also divisible by 2
this means it's a composite number
composite numbers are those numbers which have factors other than 1 and itself..
7×6×5×4×3×2×1+5..
5040
it's also divisible by 2 and 5 it's a composite number...
...
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