Q: What are the prime factors of the number 78,075,120?

 A: 2, 3, 5, 61, 5333

Why are those the prime factors of the number 78,075,120?

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 78,075,120

78,075,120
Factor Arrows
239,037,560
Factor Arrows
219,518,780
Factor Arrows
29,759,390
Factor Arrows
24,879,695
Factor Arrows
31,626,565
Factor Arrows
5325,313
Factor Arrows
615,333

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, 5, 61, 5333

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 61 x 5,333 = 78,075,120

This can also be written as 24 x 31 x 51 x 611 x 5,3331 = 78,075,120

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


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