Prime Factorization
Trending Questions
Q. Write three pairs of prime numbers less than 20 whose sum is divisible by 5?
- (2, 3), (0, 5), (13, 17)
- (2, 3), (3, 7), (13, 17)
- (2, 3), (3, 7), (2, 8)
- (2, 3), (2, 17), (13, 17)
Q. What is the prime factorisation of 84?
- 2^2 x 7 x 9
- 2 x 3 x 7
- 2^2 x 3 x 7
- 2 x 3^2 x 7
Q. The prime factorisation of 272 is .
- 24×13
- 24×17
- 22×17
Q. The prime factorisation of 272 is .
- 22×17
- 24×13
- 24×17
Q. A prime number has exactly ______ factors.
- zero
- three
- two
- one
Q. A prime number has exactly ______ factors.
- one
- three
- two
- zero
Q. What is the prime factorisation of 84?
- 2^2 x 7 x 9
- 2 x 3^2 x 7
- 2 x 3 x 7
- 2^2 x 3 x 7