Q: What are the prime factors of the number 782,654,644?

 A: 2, 31, 61, 103471

Why are those the prime factors of the number 782,654,644?

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 782,654,644

782,654,644
Factor Arrows
2391,327,322
Factor Arrows
2195,663,661
Factor Arrows
316,311,731
Factor Arrows
61103,471

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, 31, 61, 103471

We can check our work by multiplying all of the prime factors together: 2 x 2 x 31 x 61 x 103,471 = 782,654,644

This can also be written as 22 x 311 x 611 x 103,4711 = 782,654,644

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


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