Q: What are the prime factors of the number 442,506,636?

 A: 2, 3, 11, 13, 43, 1999

Why are those the prime factors of the number 442,506,636?

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 442,506,636

442,506,636
Factor Arrows
2221,253,318
Factor Arrows
2110,626,659
Factor Arrows
336,875,553
Factor Arrows
312,291,851
Factor Arrows
111,117,441
Factor Arrows
1385,957
Factor Arrows
431,999

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, 11, 13, 43, 1999

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 11 x 13 x 43 x 1,999 = 442,506,636

This can also be written as 22 x 32 x 111 x 131 x 431 x 1,9991 = 442,506,636

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


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