Q: What are the prime factors of the number 1,516,352?

 A: 2, 19, 29, 43

Why are those the prime factors of the number 1,516,352?

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 1,516,352

1,516,352
Factor Arrows
2758,176
Factor Arrows
2379,088
Factor Arrows
2189,544
Factor Arrows
294,772
Factor Arrows
247,386
Factor Arrows
223,693
Factor Arrows
191,247
Factor Arrows
2943

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, 19, 29, 43

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 19 x 29 x 43 = 1,516,352

This can also be written as 26 x 191 x 291 x 431 = 1,516,352

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


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