Q: What are the prime factors of the number 46,054,400?

 A: 2, 5, 7, 257

Why are those the prime factors of the number 46,054,400?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 46,054,400

46,054,400
Factor Arrows
223,027,200
Factor Arrows
211,513,600
Factor Arrows
25,756,800
Factor Arrows
22,878,400
Factor Arrows
21,439,200
Factor Arrows
2719,600
Factor Arrows
2359,800
Factor Arrows
2179,900
Factor Arrows
289,950
Factor Arrows
244,975
Factor Arrows
58,995
Factor Arrows
51,799
Factor Arrows
7257

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 5, 7, 257

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 5 x 7 x 257 = 46,054,400

This can also be written as 210 x 52 x 71 x 2571 = 46,054,400

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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