Monday, 20 January 2014

Pondering over Primes 01

A number's prime factorisation is
23 X 32 X 52
Is the number even or odd? Explain your reasoning.
Name four other factors of this number, other than 2, 3 and 5.

6 comments:

  1. The answer is 1800, therefore, it is even

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  2. The answer is 1800. 1800 is an even number as i can be divided by even numbers.

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  3. 1800 is the answer ,so the answer is an even number because 1800 can be divided by 2

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  4. There is number 2 included in the index notation. Anything that is multiplied by even number, the product is even number.

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  5. Ans: 1800, So therefore the number is even as it is multiplied by 2.

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  6. the answer is even as it has been multiplied by 2.

    9 and 10

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