Q: What are the prime factors of the number 46,570,400?

 A: 2, 5, 23, 2531

Why are those the prime factors of the number 46,570,400?

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 46,570,400

46,570,400
Factor Arrows
223,285,200
Factor Arrows
211,642,600
Factor Arrows
25,821,300
Factor Arrows
22,910,650
Factor Arrows
21,455,325
Factor Arrows
5291,065
Factor Arrows
558,213
Factor Arrows
232,531

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, 23, 2531

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 5 x 23 x 2,531 = 46,570,400

This can also be written as 25 x 52 x 231 x 2,5311 = 46,570,400

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


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