Question

explain why 7x11x13+13and 7x6x5x4x3x2x1x+5 are compostive number

Answer 1

Answer:

7×11×13+13 = 13×(7×11+1)

=13×(77+1)

=13×78

13×13×6

• the given expression has 6 and 13 as its factors, therefore it it composite mumber

7×6×5×4×3×2×1+5=5×(7×6×5×4×3×2×1+1)

=5×(1008+1)

= 5×1009

• 1009 cannot be factorised further , therefore the given expression has 5 and 1009 as its factor. Hence , it is a composite number

Step-by-step explanation:

Hope it will help u ..please mark me as brainliest