Q: What are the prime factors of the number 322,440,416?

 A: 2, 73, 97, 1423

Why are those the prime factors of the number 322,440,416?

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 322,440,416

322,440,416
Factor Arrows
2161,220,208
Factor Arrows
280,610,104
Factor Arrows
240,305,052
Factor Arrows
220,152,526
Factor Arrows
210,076,263
Factor Arrows
73138,031
Factor Arrows
971,423

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, 73, 97, 1423

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 73 x 97 x 1,423 = 322,440,416

This can also be written as 25 x 731 x 971 x 1,4231 = 322,440,416

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


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