Q: What are the prime factors of the number 771,654,576?

 A: 2, 3, 7, 11, 103, 2027

Why are those the prime factors of the number 771,654,576?

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 771,654,576

771,654,576
Factor Arrows
2385,827,288
Factor Arrows
2192,913,644
Factor Arrows
296,456,822
Factor Arrows
248,228,411
Factor Arrows
316,076,137
Factor Arrows
72,296,591
Factor Arrows
11208,781
Factor Arrows
1032,027

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, 103, 2027

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 11 x 103 x 2,027 = 771,654,576

This can also be written as 24 x 31 x 71 x 111 x 1031 x 2,0271 = 771,654,576

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


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