Q: What are the prime factors of the number 742,570,776?

 A: 2, 3, 31, 443, 751

Why are those the prime factors of the number 742,570,776?

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 742,570,776

742,570,776
Factor Arrows
2371,285,388
Factor Arrows
2185,642,694
Factor Arrows
292,821,347
Factor Arrows
330,940,449
Factor Arrows
310,313,483
Factor Arrows
31332,693
Factor Arrows
443751

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, 31, 443, 751

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 31 x 443 x 751 = 742,570,776

This can also be written as 23 x 32 x 311 x 4431 x 7511 = 742,570,776

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


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