Question

explain 7*11*13+13 and 7*6*5*4*3*2*1+5​

Answer 1

Answer:

7×11×13+13 may be written as, i.e. 13 * (78). So other than 1 and the number itself, 13 and 78 are also the factors of the number. ... Hence its composite number. Similarly, 7×6×5×4×3×2×1+5 can be written as , i.e. 5 *