Q: What are the prime factors of the number 787,045,416?

 A: 2, 3, 127, 149, 1733

Why are those the prime factors of the number 787,045,416?

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 787,045,416

787,045,416
Factor Arrows
2393,522,708
Factor Arrows
2196,761,354
Factor Arrows
298,380,677
Factor Arrows
332,793,559
Factor Arrows
127258,217
Factor Arrows
1491,733

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, 127, 149, 1733

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 127 x 149 x 1,733 = 787,045,416

This can also be written as 23 x 31 x 1271 x 1491 x 1,7331 = 787,045,416

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


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