Q: What are the prime factors of the number 402,264,445?

 A: 5, 11, 79, 92581

Why are those the prime factors of the number 402,264,445?

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 402,264,445

402,264,445
Factor Arrows
580,452,889
Factor Arrows
117,313,899
Factor Arrows
7992,581

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:

5, 11, 79, 92581

We can check our work by multiplying all of the prime factors together: 5 x 11 x 79 x 92,581 = 402,264,445

This can also be written as 51 x 111 x 791 x 92,5811 = 402,264,445

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


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