Q: What are the prime factors of the number 38,024,448?

 A: 2, 3, 7, 11, 643

Why are those the prime factors of the number 38,024,448?

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 38,024,448

38,024,448
Factor Arrows
219,012,224
Factor Arrows
29,506,112
Factor Arrows
24,753,056
Factor Arrows
22,376,528
Factor Arrows
21,188,264
Factor Arrows
2594,132
Factor Arrows
2297,066
Factor Arrows
2148,533
Factor Arrows
349,511
Factor Arrows
77,073
Factor Arrows
11643

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, 7, 11, 643

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 2 x 2 x 3 x 7 x 11 x 643 = 38,024,448

This can also be written as 28 x 31 x 71 x 111 x 6431 = 38,024,448

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


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