Q: What are the prime factors of the number 101,478,564?

 A: 2, 3, 11, 109, 2351

Why are those the prime factors of the number 101,478,564?

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 101,478,564

101,478,564
Factor Arrows
250,739,282
Factor Arrows
225,369,641
Factor Arrows
38,456,547
Factor Arrows
32,818,849
Factor Arrows
11256,259
Factor Arrows
1092,351

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, 3, 11, 109, 2351

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 11 x 109 x 2,351 = 101,478,564

This can also be written as 22 x 32 x 111 x 1091 x 2,3511 = 101,478,564

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


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