Use a factor tree.
400
20,2
10,2,2
50,2,2,2
25,2,2,2,2
5,5,2,2,2,2
2 x 2 x 2 x 2 x 5 x 5 = 400
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The prime factorization of 400 is: 2 x 2 x 2 x 2 x 5 x 5
24 x 52 = 400
295 = 5 × 59
2 x 2 x 2 x 2 x 5 x 5 is the prime factorization of 400. 2^4 x 5^2As a product of its prime factors in exponents: 2^4 times 5^2 = 400
Use a factor tree. 400 200,2 100,2,2 50,2,2,2 25,2,2,2,2 5,5,2,2,2,2