Q: What are the prime factors of the number 770,612,400?

 A: 2, 3, 5, 71353

Why are those the prime factors of the number 770,612,400?

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 770,612,400

770,612,400
Factor Arrows
2385,306,200
Factor Arrows
2192,653,100
Factor Arrows
296,326,550
Factor Arrows
248,163,275
Factor Arrows
316,054,425
Factor Arrows
35,351,475
Factor Arrows
31,783,825
Factor Arrows
5356,765
Factor Arrows
571,353

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, 71353

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 5 x 5 x 71,353 = 770,612,400

This can also be written as 24 x 33 x 52 x 71,3531 = 770,612,400

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


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