9/In which of the following expressions, prime factorisation has been done?
(a) 24=2x3x4
(c) 70=2x5x7
(b) 56=7x2x2x2
(d) 54=2x3x9
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5
Answer:
In Which of the following expressions prime factorization has been done: (a) 24=2x3x4 (b) 56=7x2x2x2 (c) 70=2x5x7 (d) 54=2x3x9. so, number 24 does not have a prime factorization. here 2 and 7 are prime numbers. so, 56 have prime factorization.
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0
Answer:
In option b and c,prime factorization has been done.
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