Question

the help of some
9. In which of the following expressions, prime factorisation has been done? And prove it how?
♡ 24 = 2 * 3x4
3 4
(b) 56 = 7 * 2 * 2 x 2
(c) 70 = 2 x 5 x 7 (d) 54 = 2 x 39​

Answer 1

Answer:

In expressions (b) and (c), prime factorization has been done.

Because, in (a) 4 is not a prime number and in (d) 9 is not a prime number.

Hope, it helps.. :)

Answer 2

Answer:

in {C} expression is done

Step-by-step explanation:

2 | 70

5 | 35

7 | 7

| 1

Prime factorization :- 2 × 5× 7 = 70