Q: What are the prime factors of the number 78,545,248?

 A: 2, 2454539

Why are those the prime factors of the number 78,545,248?

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 78,545,248

78,545,248
Factor Arrows
239,272,624
Factor Arrows
219,636,312
Factor Arrows
29,818,156
Factor Arrows
24,909,078
Factor Arrows
22,454,539

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, 2454539

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2,454,539 = 78,545,248

This can also be written as 25 x 2,454,5391 = 78,545,248

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


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