To work it out you'll need to break it down by halving it, by 3's, 5's, 7's etc... until you can't break it down no more.
Your final answer should consist of 2x2x3x7 etc... and when you times them all together you should get 2457.
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2457 is a composite number, not a prime. Its factors are 3 x 3 x 3 x 7 x 13.
2,457 is not prime (so it is composite) because 2,457=3x3x3x7x13
No, 3x5x4 is not a prime factorization of 60. A prime factorization of 60 would consist of only prime numbers. The prime factorization of 60 is 2x2x3x5.
When all the factors are prime numbers, that's a prime factorization.
Prime factorization!