Q: What are the prime factors of the number 416,353,312?

 A: 2, 31, 419711

Why are those the prime factors of the number 416,353,312?

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 416,353,312

416,353,312
Factor Arrows
2208,176,656
Factor Arrows
2104,088,328
Factor Arrows
252,044,164
Factor Arrows
226,022,082
Factor Arrows
213,011,041
Factor Arrows
31419,711

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, 31, 419711

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 31 x 419,711 = 416,353,312

This can also be written as 25 x 311 x 419,7111 = 416,353,312

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


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