Practice30 Create account

Which of these numbers has exactly two different prime factors?

Class 7Prime Factors in Exponent FormNumber System

A32
B105
C30
D36

Step-by-Step Solution

36 =

2^{2} \times 3^{2}

: primes 2 and 3.

30 = 2 \times 3 \times 5

and

105 = 3 \times 5 \times 7

have three;

32 = 2^{5}

has only one.

Answer: D) 36

Master this chapter in 30 minutes a day.

Don't just memorise the answer — build a daily practice habit.

Practice 5 Similar Questions Free →

All Prime Factors in Exponent Form practice questions

More Class 7 Prime Factors in Exponent Form practice

Which prime p makes 2^2 × 3 × p^2 = 300 true?Identify the greater number: 4^3 or 3^4.Express 256 as a power of a prime number.Which of these numbers can be written as a power of a single prime?Four students wrote 180 using its prime factors. Who wrote it correctly as a product of…