Composite numbers

Q.

Explain why $7\times 11\times 13+13$and $7\times 6\times 5\times 4\times 3\times 2\times 1+5$ are composite numbers?

Q.

7 consecutive composite numbers less than 100 are -

1. 90, 91, 92, 93, 94, 95, 96

2. 65, 67, 68, 69, 70, 71, 72

3. 81, 82, 83, 84, 85, 86, 87

4. 46, 47, 48, 49, 50, 51, 52

Q.

Write all the composite numbers from $17$ to $38$.

Q.

Write all composite numbers between $10$to $18$

Q.

Choose the correct answer in the given question.

Jenny uses $36$ beads to make $4$ bracelets. How many of the same type of bracelets can Jenny make with $180$ beads.

1. $20$

2. $27$

3. $432$

4. $972$